12th Class Biology Human Reproduction Question Bank

done MCQs - Human Reproduction Total Questions - 181

• question_answer1)
  Which one of the following cells, found in the testes of mammal, secrete male hormones?
  A)
  Leydig's cells done clear
  B)
  Sertoli cells done clear
  C)
  Epithelial cells done clear
  D)
  Spermatocytes done clear
  View Solution play_arrow

• question_answer2)
  Acrosome is found in the sperm of
  A)
  Top of head done clear
  B)
  Neck done clear
  C)
  Middle piece done clear
  D)
  Tail done clear
  View Solution play_arrow

• question_answer3)
  The fimbriated funnel is
  A)
  Part of oviduct done clear
  B)
  Part of urinary bladder done clear
  C)
  Region of uterus done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer4)
  Oogenesis comprises
  A)
  Multiplication phase done clear
  B)
  Growth phase done clear
  C)
  Maturation phase done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer5)
  Eggs having yolk in their centre and cytoplasm in the peripheral layer, are called
  A)
  Isolecithal done clear
  B)
  Microlecithal done clear
  C)
  Centrolecithal done clear
  D)
  Telolecithal done clear
  View Solution play_arrow

• question_answer6)
  Middle piece of a mammalian sperm contains :
  A)
  Nucleus done clear
  B)
  Centriole done clear
  C)
  Mitochondria done clear
  D)
  Vacuole done clear
  View Solution play_arrow

• question_answer7)
  Sertoli cells are involved in :
  A)
  Nutrition of sperms done clear
  B)
  Excretion done clear
  C)
  Respiration done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer8)
  The first step in reproduction at the cellular level is :
  A)
  Formation of special sex cells done clear
  B)
  Cell division done clear
  C)
  Rapid increase in cell volume done clear
  D)
  Constriction of cytoplasm done clear
  View Solution play_arrow

• question_answer9)

  Consider the parts labelled as 1, 2, 3, 4 and 5 respectively in the following diagrammatic sections view of male pelvis showing reproductive system and find out the correct option.

  A)
  1 - Anus; 2 - Rectum: 3 - Urethra; 4 - Vas deferens; 5 - Seminal vesicle done clear
  B)
  1 - Ejaculatory duct; 2 - Rectum: 3 - Urethra; 4 - Vas efferens; 5 - Seminal vesicle done clear
  C)
  1 - Ejaculatory duct; 2 - Rectum: 3 - Urethra; 4 - Vas deferens; 5 - Seminal vesicle done clear
  D)
  1 - Ejaculatory duct; 2 - Duodenum: 3 - Urethra; 4 - Vas deferens; 5 - Seminal vesicle done clear
  View Solution play_arrow

• question_answer10)
  Sperms become motile in human beings in :
  A)
  Seminiferous tubules done clear
  B)
  Vas deferens done clear
  C)
  Epididymis done clear
  D)
  Seminal vesicles done clear
  View Solution play_arrow

• question_answer11)
  In cryptorchidism :
  A)
  Spermatogenesis fails to occur done clear
  B)
  Maturation of sperms does not occur done clear
  C)
  Testis fails to descend in inguinal canal done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer12)
  The growth of corpus luteum is initiated by :
  A)
  LH done clear
  B)
  Prolactin done clear
  C)
  HCG done clear
  D)
  FSH done clear
  View Solution play_arrow

• question_answer13)
  Cumulus oophorus covers :
  A)
  Ovum done clear
  B)
  Embryo done clear
  C)
  Ovary done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer14)
  Eggs of placental mammals like primates are :
  A)
  Mesolecithal done clear
  B)
  Alecithal done clear
  C)
  Telolecithal done clear
  D)
  Polylecithal done clear
  View Solution play_arrow

• question_answer15)
  In females, the essential hormones for secondary sexual characters are :
  A)
  Estrogens done clear
  B)
  Progesterone done clear
  C)
  Testosterone done clear
  D)
  Relaxin done clear
  View Solution play_arrow

• question_answer16)
  Corpus luteum is found in :
  A)
  Ovary done clear
  B)
  Oviduct done clear
  C)
  Uterus done clear
  D)
  Vagina done clear
  View Solution play_arrow

• question_answer17)
  Testosterone is secreted by :
  A)
  Mast cells done clear
  B)
  Sertoli cells done clear
  C)
  Kupffer cells done clear
  D)
  Leydig's cells done clear
  View Solution play_arrow

• question_answer18)
  How many ova and sperms would be produced from 100 secondary oocytes ant 100 secondary spermatocytes during gametogenesis in humans?
  A)
  100 ova, 100 sperms done clear
  B)
  100 ova, 200 sperms done clear
  C)
  50 ova, 100 sperms done clear
  D)
  200 ova, 200 sperms done clear
  View Solution play_arrow

• question_answer19)
  In most mammals, testes are located in scrotal sacs for :
  A)
  Sex differentiation done clear
  B)
  Sperm development in cooler condition done clear
  C)
  Independent functioning of kidneys done clear
  D)
  More space to visceral organs done clear
  View Solution play_arrow

• question_answer20)
  In which part of sperm, mitochondria are present?
  A)
  Head done clear
  B)
  Tail done clear
  C)
  Neck done clear
  D)
  Middle piece done clear
  View Solution play_arrow

• question_answer21)
  What happens during Spermatogenesis?
  A)
  Mitosis done clear
  B)
  Meiosis done clear
  C)
  Both [a] and [b] done clear
  D)
  Metamorphosis done clear
  View Solution play_arrow

• question_answer22)
  The Mullerian duct in the female amniotes develop into :
  A)
  Oviduct done clear
  B)
  Ureters done clear
  C)
  Seminal receptacle done clear
  D)
  Uterus done clear
  View Solution play_arrow

• question_answer23)
  The head of epididymis at the head of testis is called :
  A)
  Cauda epididymis done clear
  B)
  Vas deferens done clear
  C)
  Caput epididymis done clear
  D)
  Gubernaculum done clear
  View Solution play_arrow

• question_answer24)
  Egg released by the Graafian follicle is surrounded by :
  A)
  Zona pellucida done clear
  B)
  Vitelline membrane done clear
  C)
  Plasma membrane done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer25)
  Glands secreting male sex hormone are :
  A)
  Leydig cells done clear
  B)
  Seminiferous tubules done clear
  C)
  Vasa deferentia done clear
  D)
  Testes done clear
  View Solution play_arrow

• question_answer26)
  Testes descend into scrotum in mammals for : 
  A)
  Spermatogenesis done clear
  B)
  Development of sex organs done clear
  C)
  Fertilization done clear
  D)
  Development of visceral organs done clear
  View Solution play_arrow

• question_answer27)

  Consider the parts labelled in 1, 2, 3, 4 and 5 respectively in the following diagrammatic sectional view of male reproductive system and find out the correct option.

  A)
  1 - Prostate gland; 2 - Urethra; 3 - Testis; 4 - Testicular lobules; 5 - Epididymis done clear
  B)
  1 - Seminal vesicle; 2 - Urethra; 3 - Testis; 4 - Testicular lobules; 5 - Vasa efferentia done clear
  C)
  1 - Seminal vesicle; 2 - Urethra; 3 - Glans penis; 4 - Testicular lobules; 5 - Epididymis done clear
  D)
  1 - Seminal vesicle; 2 - Urethra; 3 - Testis; 4 - Testicular lobules; 5 - Epididymis done clear
  View Solution play_arrow

• question_answer28)
  Testes are protected in scrotum because they :
  A)
  Produce heat done clear
  B)
  Produce sperms done clear
  C)
  Help in micturition done clear
  D)
  Control homeostasis done clear
  View Solution play_arrow

• question_answer29)
  Antrum is the cavity of :
  A)
  Graafian follicle done clear
  B)
  Gastrula done clear
  C)
  Blastula done clear
  D)
  Ovary done clear
  View Solution play_arrow

• question_answer30)
  Sperms produce an enzymatic chemical called ...... for dissolving the egg coverings.
  A)
  Hyaluronic acid done clear
  B)
  Hyaluronidase done clear
  C)
  Androgamone done clear
  D)
  Diastase done clear
  View Solution play_arrow

• question_answer31)
  Clitoris in female mammal is :
  A)
  Homologous to penis of male done clear
  B)
  Analogous to penis of male done clear
  C)
  Non functional done clear
  D)
  Overgrown structure              done clear
  View Solution play_arrow

• question_answer32)
  Which pan of sperm provides energy for its movement?
  A)
  Tail done clear
  B)
  Middle piece done clear
  C)
  Head done clear
  D)
  Acrosome     done clear
  View Solution play_arrow

• question_answer33)
  5 oogonia yield 10 primary oocytes, then how many ova are produced on completion of oogenesis?
  A)
  5 done clear
  B)
  10 done clear
  C)
  20 done clear
  D)
  40 done clear
  View Solution play_arrow

• question_answer34)
  The cytoplasm surrounding the mitochondria found in the middle piece of sperms is :
  A)
  Acrosome done clear
  B)
  Microsome done clear
  C)
  Manchette done clear
  D)
  Centrosome           done clear
  View Solution play_arrow

• question_answer35)
  Which of the following is correct about mammalian testes?
  A)
  Graafian follicles, sertoli cells, Leydig cells done clear
  B)
  Sertoli cells, seminiferous tubules, Leydig cells done clear
  C)
  Graafian follicles, Leydig's cells, seminiferous tubules done clear
  D)
  Graafian follicles, sertoli cells, seminiferous tubules done clear
  View Solution play_arrow

• question_answer36)

  Consider the parts labelled as 1, 2, 3, 4, 5 and 6 respectively in the following diagrammatic sectional view of female pelvis showing reproductive system and find out the correct option.

  A)
  1 - Anus; 2 - Rectum; 3 - Vagina; 4 - Vaginal orifice; 5 - Clitoris; 6 - Pubic symphysis done clear
  B)
  1 - Cervix; 2 - Rectum; 3 - Vagina; 4 - Vaginal orifice; 5 - Clitoris; 6 - Pubic symphysis done clear
  C)
  1 - Cervix; 2 - Rectum; 3 - Hymen; 4 - Vaginal orifice; 5 - Clitoris; 6 - Pubic symphysis done clear
  D)
  1 - Cervix; 2 - Rectum; 3 - Vagina; 4 - Vaginal orifice; 5 - Glans; 6 - Pubic symphysis done clear
  View Solution play_arrow

• question_answer37)
  In which of the following, testes remain in abdomen and do not descend in scrotum?
  A)
  Elephant done clear
  B)
  Rabbit done clear
  C)
  Human done clear
  D)
  Ox done clear
  View Solution play_arrow

• question_answer38)
  Corpus luteum in mammals occurs in :
  A)
  Skin and acts as pain receptor done clear
  B)
  Heart and initiates atrial contraction done clear
  C)
  Ovaries and produces progesterone done clear
  D)
  Brain and connects lobes of cerebrum done clear
  View Solution play_arrow

• question_answer39)
  Tunica albuginea is the covering of :
  A)
  Liver done clear
  B)
  Spleen done clear
  C)
  Testes done clear
  D)
  Lungs done clear
  View Solution play_arrow

• question_answer40)
  Bartholin's glands are situated :
  A)
  At reduced end of tail of birds done clear
  B)
  On either side of vagina in humans done clear
  C)
  On either side of vas deferens in humans done clear
  D)
  On sides of head of some amphibians done clear
  View Solution play_arrow

• question_answer41)
  Spermatid in human being is :
  A)
  4n done clear
  B)
  3n done clear
  C)
  2n done clear
  D)
  n done clear
  View Solution play_arrow

• question_answer42)
  The number of chromosomes in a mature gamete gets halved during :
  A)
  Meiosis-II done clear
  B)
  Formation of first polar body done clear
  C)
  Formation of second polar body done clear
  D)
  Division of secondary oocyte and spermatocyte done clear
  View Solution play_arrow

• question_answer43)
  In spermatogenesis, the maturation phase involves :
  A)
  Formation of spermatids from primary spermatocytes through meiosis done clear
  B)
  Formation of oogonia from spermatocytes through meiosis done clear
  C)
  Growth of spermatogonia into primary spermatocytes done clear
  D)
  Formation of spermatogonia from gonocytes through mitosis. done clear
  View Solution play_arrow

• question_answer44)
  Sertoli cells are found :
  A)
  In upper part of Fallopian tubes done clear
  B)
  In germinal epithelium of seminiferous tubules done clear
  C)
  Between the seminiferous tubules done clear
  D)
  In germinal epithelium done clear
  View Solution play_arrow

• question_answer45)
  Secondary spermatocytes are :
  A)
  Haploids done clear
  B)
  Diploids done clear
  C)
  Triploids done clear
  D)
  Tetraploids done clear
  View Solution play_arrow

• question_answer46)
  Acrosome of spermatozoa is formed by :
  A)
  Mitochondria done clear
  B)
  Golgi body done clear
  C)
  Ribosomes done clear
  D)
  Lysosomes done clear
  View Solution play_arrow

• question_answer47)
  Number of secondary spermatocytes required to produce 200 spermatozoa are :
  A)
  50 done clear
  B)
  100 done clear
  C)
  200 done clear
  D)
  400 done clear
  View Solution play_arrow

• question_answer48)
  After ovulation, the structure formed by the rupture of follicle is known as :
  A)
  Corpus albicans done clear
  B)
  Corpus luteum done clear
  C)
  Corpus callosum done clear
  D)
  Corpus mammilare done clear
  View Solution play_arrow

• question_answer49)
  Enzyme produced by mammalian sperm for entry into ovum is :
  A)
  Hyaluronidase done clear
  B)
  Kinase done clear
  C)
  Endonuclease done clear
  D)
  Reductase done clear
  View Solution play_arrow

• question_answer50)
  The eggs in Eutherian mammals are :
  A)
  Megalecithal done clear
  B)
  Telolecithal done clear
  C)
  Microlecithal done clear
  D)
  Alecithal done clear
  View Solution play_arrow

• question_answer51)
  Spermatogenesis in human beings is induced by :
  A)
  FSH done clear
  B)
  MSH done clear
  C)
  ACTH done clear
  D)
  HCG done clear
  View Solution play_arrow

• question_answer52)
  Graafian follicles are formed from :
  A)
  Stroma of ovaries done clear
  B)
  Columnar epithelium of testes done clear
  C)
  Germinal epithelium of ovaries done clear
  D)
  Assembly of ribosomes in bacteria done clear
  View Solution play_arrow

• question_answer53)
  Ovulation in female is under the control of :
  A)
  LTH done clear
  B)
  ADH and LH done clear
  C)
  FSH and LH done clear
  D)
  LTH and TSH done clear
  View Solution play_arrow

• question_answer54)
  One million oocytes and one million secondary spermatocytes will form :
  A)
  2 million ova and 2 million sperms done clear
  B)
  1 million ova and 1 million sperms done clear
  C)
  2 million ova and 1 million sperms done clear
  D)
  1 million ova and 2 million sperms done clear
  View Solution play_arrow

• question_answer55)

  Consider the parts labelled as 1, 2, 3, 4 and 5 respectively in the following diagrammatic sectional view of female reproductive system and find out the correct option.

  A)
  1 - Fimbriae; 2 - Uterine fundus: 3 - Uterine cavity; 4 - Endometrium; 5 - Perimetrium done clear
  B)
  1 - Ampulla; 2 - Uterine fundus; 3 - Uterine cavity; 4 - Endometrium; 5 - Perimetrium done clear
  C)
  1 - Fimbriae; 2 - Uterine fundus; 3 - Vagina; 4 - Endometrium; 5 - Perimetrium done clear
  D)
  1 - Fimbriae; 2 - Uterine fundus; 3 - Uterine cavity; 4 - Endometrium; 5 - Vulva done clear
  View Solution play_arrow

• question_answer56)
  Nutritive cells found in seminiferous tubules are :
  A)
  Sertoli cells done clear
  B)
  Leydig cells done clear
  C)
  Chromaffin cells done clear
  D)
  Spermatogonial cells done clear
  View Solution play_arrow

• question_answer57)
  In females, hormone inhibin is secreted by :
  A)
  Theca cells done clear
  B)
  Zona pellucida done clear
  C)
  Granulosa cells done clear
  D)
  Corpus luteum done clear
  View Solution play_arrow

• question_answer58)
  In which of the following organisms, testes descend into scrotum in breeding season but in non-breeding season go up?
  A)
  Frog done clear
  B)
  Bat done clear
  C)
  Shrew done clear
  D)
  Kangaroo done clear
  View Solution play_arrow

• question_answer59)
  Nebenkern is a part of :
  A)
  Human ovum done clear
  B)
  Human sperm done clear
  C)
  Foetus done clear
  D)
  Graafian follicle done clear
  View Solution play_arrow

• question_answer60)

  In the diagram of section of Graafian follicle, different parts are indicated by alphabets. Choose the answer in which these alphabets have been correctly matched with the parts they indicate.

  A)
  A = Membrana granulosa; B = Teca interna; C = Ovum; D = Cumulus oophorus; E = Antrum; F = Theca externa done clear
  B)
  A = Theca externa; B = Theca interna; C = ovum; D = Membrana granulosa; E = Antrum; F = Cumulus oophorus done clear
  C)
  A = Theca externa; B = Theca interna; C = ovum; D = Cumulus oophorus; E = Antrum; F = membrana granulosa done clear
  D)
  A = Membrana granulosa; B = Theca externa; C = Ovum; D = Cumulus oophorus; E = Antrum; F = Theca interna done clear
  View Solution play_arrow

• question_answer61)

  In the given diagram, identify parts named 1 to 5:

  A)
  1-nucleus, 2-tail, 3-mitochondria, 4-acrosome, 5-centriole done clear
  B)
  1-acrosome. 2-nucleus, 3-centriole, 4-mitochondria, 5-plasma membrane done clear
  C)
  1-nucleus, 2-mitochondria, 3-plasma membrane, 4-centriole, 5-neck done clear
  D)
  1-acrosome, 2-centriole, 3-mitochondria, 4-plasma membrane, 5-tail done clear
  View Solution play_arrow

• question_answer62)
  Cauda epididymis in male genital system leads to :
  A)
  Rete testis done clear
  B)
  Vas deferens done clear
  C)
  Vas efferens done clear
  D)
  Ejaculatory duct done clear
  View Solution play_arrow

• question_answer63)
  Which one is unpaired gland in male reproductive system?
  A)
  Seminal vesicle done clear
  B)
  Cowper's gland done clear
  C)
  Prostate gland done clear
  D)
  Lacrimal gland done clear
  View Solution play_arrow

• question_answer64)
  In most mammals, the testes are located in scrotal sacs for :
  A)
  Spermatogenesis done clear
  B)
  Sex differentiation done clear
  C)
  More space to visceral organs done clear
  D)
  Independent functioning of kidneys done clear
  View Solution play_arrow

• question_answer65)
  Middle piece of sperm contains :
  A)
  Mitochondria and Golgi body done clear
  B)
  Centriole and Golgi body done clear
  C)
  Axial filament and Golgi body done clear
  D)
  Mitochondria and Axial filament done clear
  View Solution play_arrow

• question_answer66)
  During oogenesis, each diploid primary oocyte produces :
  A)
  Four functional sperms done clear
  B)
  Two functional egg and two polar bod done clear
  C)
  Four functional polar bodies done clear
  D)
  One functional egg and three polar bodies done clear
  View Solution play_arrow

• question_answer67)

  Consider the parts labelled in 1, 2, 3, 4 and 5 respectively in the following diagrammatic sectional view of Mammary gland and find out the correct option.

  A)
  1 - Muscle between ribs; 2 - Pectoralis major muscle; 3 - Mammary alveolus; 4 - Lactiferous duct; 5 - Areola done clear
  B)
  1 - Muscle between ribs; 2 - Pectoralis major muscle; 3 - Mammary ampulla; 4 - Lactiferous duct; 5 - Areola done clear
  C)
  1 - Muscle between ribs; 2 - Pectoralis major muscle; 3 - Mammary alveolus; 4 - Lactiferous duct; 5 - Nipple done clear
  D)
  1 - Muscle between ribs; 2 - Pectoralis major muscle; 3 - Mammary alveolus; 4 - Lactiferous duct: 5 - Teat done clear
  View Solution play_arrow

• question_answer68)
  Sperms formed from 4 primary spermatocytes are :
  A)
  4 done clear
  B)
  1 done clear
  C)
  16 done clear
  D)
  32 done clear
  View Solution play_arrow

• question_answer69)
  Sperm's acrosome has:
  A)
  Hyaluronic acid and proacrosin done clear
  B)
  Hyaluronidase and proacrosin done clear
  C)
  Hyaluronic acid and fertilizing done clear
  D)
  Fertilizin and proacrosin done clear
  View Solution play_arrow

• question_answer70)
  In males, testes are contained in the scrotal sacs because :
  A)
  Other organs do not make space for the testes in the abdominal cavity done clear
  B)
  Provides temperature slightly lower than body temperature for formation of sperms done clear
  C)
  Testes in abdomen will hamper maturation of sperms done clear
  D)
  Facilitates ejaculation done clear
  View Solution play_arrow

• question_answer71)
  Bidder's canal in male frog is meant for the passage of :
  A)
  Ova done clear
  B)
  Urine done clear
  C)
  Sperms done clear
  D)
  Faecel matter done clear
  View Solution play_arrow

• question_answer72)

  Cowper's glands secrete a substance to :

  (1) Nourish sperms

  (2) Neutralise the acidity

  (3) Kill pathogens

  (4) Lubricate female vagina to facilitate copulation

  Choose the correct answers :

  A)
  1, 2 are 3 are correct done clear
  B)
  1 and 2 are correct done clear
  C)
  2 and 4 are correct done clear
  D)
  1 and 3 are correct done clear
  View Solution play_arrow

• question_answer73)

  Which of the following are haploid in nature?

  (1) Spermatids

  (2) Secondary spermatocytes

  (3) Spermatogonia

  (4) Primary spermatocytes

  A)
  1, 2 are 3 are correct done clear
  B)
  1 and 2 are correct done clear
  C)
  2 and 4 are correct done clear
  D)
  1 and 3 are correct done clear
  View Solution play_arrow

• question_answer74)
  Bartholin's glands of female correspond to which glands in male?
  A)
  Cowper's glands done clear
  B)
  Inguinal glands done clear
  C)
  Rectal glands done clear
  D)
  Prostate glands done clear
  View Solution play_arrow

• question_answer75)
  Cytoplasm of ovum does not contain :
  A)
  Golgi complex done clear
  B)
  Centrosome done clear
  C)
  Mitochondria done clear
  D)
  Ribosomes done clear
  View Solution play_arrow

• question_answer76)
  Pubic hair are present on
  A)
  Labia majora done clear
  B)
  Labia minora done clear
  C)
  Both [a] and [b] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer77)

  Choose the correct option with right labelling of the following figure :

  A)
  A = oviduct, B = uterus, C = cervix, D = ovary done clear
  B)
  A = cervix, B = uterus, C = ovary, D = oviduct done clear
  C)
  A = uterus, B = cervix, C = oviduct, D = ovary done clear
  D)
  A = cervix, B = uterus, C oviduct, D = ovary done clear
  View Solution play_arrow

• question_answer78)

  Consider the parts labelled in 1, 2, 3, 4 and 5 respectively in the following diagrammatic sectional view of a seminiferous tubule and find out the correct option.

  A)
  1 - Spermatozoa; 2 - Spermatid; 3 - Primary spermatocyte; 4 - Leydig cell; 5 - Spermatogonium done clear
  B)
  1 - Spermatozoa; 2 - Spermatid; 3 - Primary spermatocyte; 4 - Sertoli cell; 5 - Spermatogonium done clear
  C)
  1- Spermatozoa; 2 - Spermatid; 3 - Secondary spermatocyte; 4 - Sertoli cell; 5 - Spermatogonium done clear
  D)
  1 - Spermatozoa; 2 - Spermatid; 3 - Primary spermatocyte; 4 - Sertoli cell; 5 - Sperm done clear
  View Solution play_arrow

• question_answer79)
  Accessory sexual character in female is promoted by
  A)
  Androgens done clear
  B)
  Progesterone done clear
  C)
  Estrogens done clear
  D)
  Testosterone done clear
  View Solution play_arrow

• question_answer80)
  Layers of an ovum from outside to inside are :
  A)
  Corona radiata, zona pellucida & vitelline membrane done clear
  B)
  Zona pellucida, corona radiata & vitelline membrane done clear
  C)
  Vitelline membrane, zona pellucida & corona radiata done clear
  D)
  Zona pellucida, vitelline membrane & corona radiate done clear
  View Solution play_arrow

• question_answer81)

  Correctly matched pairs are :

  (1) Clitoris : Erectile body in female, homologous to glans penis of male

  (2) Coitus : Sexual intercourse

  (3) Colostrum : Secretion found in seminal fluid

  (4) Areola : Pigmented circular area around the nipple

  A)
  1, 2 and 4 are correct done clear
  B)
  1 and 2 are correct done clear
  C)
  2 and 4 are correct done clear
  D)
  1 and 3 are correct done clear
  View Solution play_arrow

• question_answer82)
  Spermatids are transformed into spermatozoa by :
  A)
  Spermiation done clear
  B)
  Spermatogenesis done clear
  C)
  Meiosis done clear
  D)
  Spermiogenesis done clear
  View Solution play_arrow

• question_answer83)
  A human female is born with a million of primary oocytes at the time of birth but only some 500 eggs get a chance of maturity. What is the destiny of rest of the egg?
  A)
  Rest of eggs differentiate back to thecal and granulosa cells done clear
  B)
  Rest of eggs nurture the dominant follicular cells done clear
  C)
  Rest of eggs move out of the ovary and are destroyed by leucocytes done clear
  D)
  Rest of eggs break down and are absorbed i.e. degenerative follicular atresia done clear
  View Solution play_arrow

• question_answer84)
  In humans, the unpaired male reproductive structure is :
  A)
  Seminal vesicle done clear
  B)
  Prostate done clear
  C)
  Bulbourethral gland done clear
  D)
  Testes done clear
  View Solution play_arrow

• question_answer85)
  In humans, the oocyte is maintained in a state -of meiotic arrest or stop by secretion of :
  A)
  Granulosa cells done clear
  B)
  Zona pellucida done clear
  C)
  Cumulus oophorus done clear
  D)
  Theca done clear
  View Solution play_arrow

• question_answer86)
  Which type of germ cells contains 23 chromosomes?
  A)
  Spermatogonia done clear
  B)
  Secondary spermatocytes done clear
  C)
  Primary spermatocytes done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer87)
  The main function of the fimbriae of the fallopian tube in females is to :
  A)
  release to ovum from the Graafian follicle done clear
  B)
  make necessary changes in the endometrium for implantation done clear
  C)
  help in the development of corpus luteum done clear
  D)
  help in the collection of the ovum after ovulation done clear
  View Solution play_arrow

• question_answer88)

  The figure shows a section of human ovary. Select the option which gives the correct identification of either A or B with function/characteristic.

  A)
  B-Corpus luteum - Secretes progesterone done clear
  B)
  A-Tertiary follicle - Forms Graafian follicle done clear
  C)
  B-Corpus luteum - Secretes estrogen done clear
  D)
  A-Primary oocyte - It is in the prophase-I of the meiotic division done clear
  View Solution play_arrow

• question_answer89)
  Spermatogenesis changes
  A)
  spermatogonium to primary spermatocyte done clear
  B)
  primary spermatocyte to secondary spermatocyte done clear
  C)
  secondary spermatocyte to spermatid done clear
  D)
  spermatid to spermatozoa done clear
  View Solution play_arrow

• question_answer90)
  Leydig cells of testes are responsible for the production of :
  A)
  Primary spermatocytes done clear
  B)
  Testosterone hormone done clear
  C)
  Leutinizing hormone done clear
  D)
  Testosterone and leutinizing hormone done clear
  View Solution play_arrow

• question_answer91)
  Which of the following statements is wrong?
  A)
  Sertoli cells provide nutrition to the developing male germ cells done clear
  B)
  Leydig cells synthesise and secrete androgens. done clear
  C)
  Secretions of the acrosome helps the sperm to enter into the cytoplasm of the ovum. done clear
  D)
  Secondary spermatocytes are diploid. done clear
  View Solution play_arrow

• question_answer92)
  The inner glandular layer of the uterus is
  A)
  endometrium done clear
  B)
  myometrium done clear
  C)
  fallopian tubes done clear
  D)
  perimetrium done clear
  View Solution play_arrow

• question_answer93)
  The release of sperms from the seminiferous tubules is called :
  A)
  spermiogenesis done clear
  B)
  spermiation done clear
  C)
  Spermatogenesis done clear
  D)
  fertilization done clear
  View Solution play_arrow

• question_answer94)
  In humans, what is the ratio of number of gametes produced from one male primary sex cell to the number of gametes produced from one female primary sex cell?
  A)
  1 : 4 done clear
  B)
  1 : 1 done clear
  C)
  4 : 1 done clear
  D)
  1 : 3 done clear
  View Solution play_arrow

• question_answer95)
  If Spermatogenesis proceeds too rapidly, inhibin is released Inhibin reduces the secretion of
  A)
  lutenizing hormone (LH) done clear
  B)
  follicle stimulating hormone (FSH) done clear
  C)
  testosterone done clear
  D)
  interstitial cell stimulating harmone (ICSH) done clear
  View Solution play_arrow

• question_answer96)
  The anterior portion of the sperm head which is covered by a cap-like structure is called
  A)
  acrosome done clear
  B)
  antrum done clear
  C)
  sertoli cells done clear
  D)
  enzymes done clear
  View Solution play_arrow

• question_answer97)
  Identify the correct match from the Columns-I, II and III

  	Column-I		Column-II		Column-III
  1.	Interstitial cells	[A]	Cortex of ovary	(i)	Follicular fluid
  2.	Sertoli cells	[B]	Ovarian follicle	(ii)	Progesterone
  3.	Granulosa	[C]	Testis	(iii)	Attachment of sperm bundle
  4.	Cells of corpus luteum	[D]	Seminiferous tubules	(iv)	Testosterone

  A)
  2-A-iii, 1-C-iv, 3-B-i, 3-D-ii   done clear
  B)
  1-C-iv, 2-D-iii, 3-B-i, 4-A-ii done clear
  C)
  1-D-iii, 2-A-iv, 3-B-i, 4-C-ii done clear
  D)
  2-D-iii, 1-C-iv, 3-A-ii, 4-B-iv done clear
  View Solution play_arrow

• question_answer98)
  Identify the correct match from the following :

  	Accessory glands		Functions
  (i)	Seminal vesicles	[A]	Lubricates vagina
  (ii)	Prostate gland	[B]	Provides energy, coagulation of sperm
  (iii)	Cowper's gland	[C]	Neutralizes acidity of vagina

  A)
  i-B, ii-C, iii-A done clear
  B)
  i-C, ii-B, iii-A done clear
  C)
  i-A, ii-C, iii-B done clear
  D)
  i-C, ii-A, iii-B done clear
  View Solution play_arrow

• question_answer99)
  "Testis are extra abdominal in position". Which of the following is most appropriate reason?
  A)
  Narrow pelvis in male done clear
  B)
  Special protection for testis done clear
  C)
  Prostate gland and seminal vesicles occupy maximum space done clear
  D)
  \[2.0\text{ }{}^\circ C\] to \[2.5{}^\circ C\]lower than the normal body temperature done clear
  View Solution play_arrow

• question_answer100)

  Consider the parts labelled as 1, 2, 3, 4 and 5 respectively in the following structure of a sperm and find out the correct option.

  A)
  1 - Plasma membrane; 2 - Acrosome; 3 - Nucleus containing chromosomal material; 4 - Neck: 5 - Mitochondria done clear
  B)
  1 - Plasma membrane; 2 - Acrosome; 3 - Nucleus containing chromosomal material; 4 - Middle piece; 5 - Golgi Body done clear
  C)
  1 - Plasma membrane; 2 - Acrosome; 3 - Nucleus containing chromosomal material; 4 - Middle piece; 5 - Ribosome done clear
  D)
  1 - Plasma membrane; 2 - Acrosome; 3 - Nucleus containing chromosomal material; 4 - Middle piece; 5 - Mitochondria done clear
  View Solution play_arrow

• question_answer101)

  The path of sperm transport is given below. Provide the missing steps in blank baxes.

  A)
  1 - Vasa efferentia; 2 - Testis done clear
  B)
  1 - Utethra; 2 - Vas deferens done clear
  C)
  1 - Vasa efferentia; 2 - Vas deferens done clear
  D)
  1 - Vasa efferentia; 2 - Penis done clear
  View Solution play_arrow

• question_answer102)

  Female reproductive organs and associated functions are given below in column A and B. Fill the blank boxes.
  Column - A	Column - B
  Ovaries	Ovulation
  Oviduct	1
  2	Pregnancy
  Vagina	Birth

  A)
  1 - Fertilisation; 2 - Labia majora done clear
  B)
  1 - Fertilisation; 2 - Labia Minora done clear
  C)
  1 - Fertilisation; 2 - Vestibule done clear
  D)
  1 - Fertilisation; 2 - Uterus done clear
  View Solution play_arrow

• question_answer103)

  The mother germ cells are transformed into a mature follicle through a series of steps. Provide the missing steps in the blank boxes.

  A)
  1 - Secondary oocyte; 2 - Secondary follicle; 3 - Tertiary follicle done clear
  B)
  1 - Ootid; 2 - Secondary follicle; 3 - Tertiary follicle done clear
  C)
  1 - Primary oocyte; 2 - Secondary follicle; 3 - Tertiary follicle done clear
  D)
  1 - Primary oocyte; 2 - Secondary follicle; 3 - LH done clear
  View Solution play_arrow

• question_answer104)

  Given below is a flow chart showing ovarian changes during menstrual cycle. Fill in the spaces giving the name of the hormones responsible for the events shown.

  A)
  1 - Estrogen; 2 - LH; 3 - LH done clear
  B)
  1 - FSH; 2 - Progesterone: 3 - LH done clear
  C)
  1 - FSH; 2 - LH; 3 - Relaxin done clear
  D)
  1 - FSH; 2 - LH; 3 - LH done clear
  View Solution play_arrow

• question_answer105)
  Fertilized ovum in humans is implanted on the uterus how many days after ovulation?
  A)
  1 day done clear
  B)
  7 days done clear
  C)
  10 days done clear
  D)
  14 days done clear
  View Solution play_arrow

• question_answer106)
  The placenta of human beings belongs to the category of
  A)
  Haemochorial done clear
  B)
  Syndesmochorial done clear
  C)
  Endotheliochorial done clear
  D)
  Epitheliochorial done clear
  View Solution play_arrow

• question_answer107)
  Immediately after fertilization, the mammalian egg is covered by a membrane called :
  A)
  Chorion done clear
  B)
  Zona pellucida done clear
  C)
  Corona radiata done clear
  D)
  Vitelline membrane done clear
  View Solution play_arrow

• question_answer108)
  Termination of gastrulation is marked by
  A)
  Obliteration of archenteron done clear
  B)
  Closure of neural tube done clear
  C)
  Obliteration of blastocoel done clear
  D)
  Closure of blastocoel done clear
  View Solution play_arrow

• question_answer109)
  One of these is not an ectodermal derivative :
  A)
  Lens of eye done clear
  B)
  Dermis of skin done clear
  C)
  Entire nervous system done clear
  D)
  Epidermis of skin done clear
  View Solution play_arrow

• question_answer110)
  Acrosomal reaction occurs during :
  A)
  Copulation done clear
  B)
  Puberty done clear
  C)
  Menopause done clear
  D)
  Fertilization done clear
  View Solution play_arrow

• question_answer111)
  Eye of human is derived from :
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Both [a] and [b] done clear
  View Solution play_arrow

• question_answer112)
  Nervous system of man is derived from :
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Both [a] and [b] done clear
  View Solution play_arrow

• question_answer113)
  Cathepsin is a type of :
  A)
  Proteolytic enzyme working at 3 to 5 pH done clear
  B)
  Amylase working in acidic medium done clear
  C)
  Lipase working in acidic medium done clear
  D)
  Secretion of liver that helps in haemostasis done clear
  View Solution play_arrow

• question_answer114)
  After ovulation, the collapsed ovarian follicle shrinks and becomes filled with cells to form :
  A)
  Corpus atresia done clear
  B)
  Corpus adiposum done clear
  C)
  Corpus luteum done clear
  D)
  Corpus albicans done clear
  View Solution play_arrow

• question_answer115)
  The extra-embryonic membranes of mammalian embryo are derived from :
  A)
  Follicle cells done clear
  B)
  Trophoblast done clear
  C)
  Formative cells done clear
  D)
  Inner cell mass done clear
  View Solution play_arrow

• question_answer116)
  During a woman's life time she produces about :
  A)
  400 eggs done clear
  B)
  4000 eggs done clear
  C)
  365 eggs done clear
  D)
  40 eggs done clear
  View Solution play_arrow

• question_answer117)
  This is referred to as "gestation"
  A)
  Period of pregnancy done clear
  B)
  Spermatization done clear
  C)
  Fertilization done clear
  D)
  Ovulation done clear
  View Solution play_arrow

• question_answer118)
  Penetration of ovum by sperm during fertilization is assisted by :
  A)
  Centrosome done clear
  B)
  Mitochondria done clear
  C)
  Acrosome done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer119)
  The function of allantois is :
  A)
  Nutrition and excretion done clear
  B)
  Protection from shocks done clear
  C)
  Respiration done clear
  D)
  Excretion done clear
  View Solution play_arrow

• question_answer120)
  What is the function of amnion?
  A)
  Respiration done clear
  B)
  Nutrition done clear
  C)
  Excretion done clear
  D)
  Protection from shocks done clear
  View Solution play_arrow

• question_answer121)
  How many cleavages occur for the formation of 32 blastomeres from the zygote?
  A)
  Six done clear
  B)
  Five done clear
  C)
  Four done clear
  D)
  Three done clear
  View Solution play_arrow

• question_answer122)
  Cleavage is a unique form of mitotic cell division in that :
  A)
  Nucleus does not participate done clear
  B)
  There is no growth of cells done clear
  C)
  No spindle developed to guide the cells done clear
  D)
  Plasma membranes of daughter cells do not separate done clear
  View Solution play_arrow

• question_answer123)
  Blastopore is the opening of :
  A)
  Blastocoel done clear
  B)
  Archenteron done clear
  C)
  Coelenteron done clear
  D)
  Gastrocoel done clear
  View Solution play_arrow

• question_answer124)
  Division of human zygote is :
  A)
  Holoblastic, equal done clear
  B)
  Meroblastic, equal done clear
  C)
  Holoblastic, unequal done clear
  D)
  Meroblastic, unequal done clear
  View Solution play_arrow

• question_answer125)
  Which of the germ layers is best associated with development of heart?
  A)
  Ectoderm done clear
  B)
  Endoderm done clear
  C)
  Mesoderm done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer126)
  The initial step during fertilization of ovum is :
  A)
  Penetration of sperm into ovum done clear
  B)
  Fertilizin-antifertilizin reaction done clear
  C)
  Formation of fertilization core done clear
  D)
  Formation of fertilization membrane done clear
  View Solution play_arrow

• question_answer127)
  Blastula of human being is:
  A)
  Stereoblastula done clear
  B)
  Coeloblastula done clear
  C)
  Discoblastula done clear
  D)
  Superficial blastula done clear
  View Solution play_arrow

• question_answer128)
  The change in mammalian sperm which prepares it to fertilize the ovum is termed as :
  A)
  Metamorphosis done clear
  B)
  Capacitation done clear
  C)
  Maturation done clear
  D)
  Preparation done clear
  View Solution play_arrow

• question_answer129)
  Progesterone production falls during which of the following process :
  A)
  Lactation done clear
  B)
  Menopause done clear
  C)
  Gestation done clear
  D)
  Menstruation done clear
  View Solution play_arrow

• question_answer130)
  Estrogen feminine hormone is secreted by :
  A)
  Corpus luteum done clear
  B)
  Membrane granulosa of Graafian follicle done clear
  C)
  Pituitary done clear
  D)
  Germinal epithelium of ovary done clear
  View Solution play_arrow

• question_answer131)
  Ovulation occurs on the ............. day of menstrual cycle.
  A)
  8-10 done clear
  B)
  12-14 done clear
  C)
  14-16 done clear
  D)
  Last two days of menstrual cycle done clear
  View Solution play_arrow

• question_answer132)
  In the male human being, sperms contain autosomes and :
  A)
  Only one Y-chromosome done clear
  B)
  Only one X-chromosome done clear
  C)
  Both X and Y-chromosomes done clear
  D)
  Either X or Y-chromosome done clear
  View Solution play_arrow

• question_answer133)

  Consider the parts labelled in 1, 2, 3 and 4 respectively in the following diagrammatic presentation of various events during a menstrual cycle and find out the correct option.

  A)
  1 - Relaxin; 2 - LH; 3 - Estrogen; 4 - Progesterone done clear
  B)
  1 - FSH; 2 - LH; 3 - Estrogen; 4 - Progesterone done clear
  C)
  1 - FSH; 2 - hPL; 3 - Estrogen; 4 - Progesterone done clear
  D)
  1 - FSH; 2 - hCG; 3 - Estrogen; 4 - Progesterone done clear
  View Solution play_arrow

• question_answer134)
  The persistence of corpus luteum during pregnancy is due to a hormone known as :
  A)
  LH done clear
  B)
  Estrogens done clear
  C)
  Progesterone done clear
  D)
  Chorionic gonadotropin done clear
  View Solution play_arrow

• question_answer135)
  The follicle that ruptures at the time of ovulation promptly fills with blood forming :
  A)
  Corpus luteum done clear
  B)
  Corpus albicans done clear
  C)
  Corpus callosum done clear
  D)
  Corpus haemorrhagium done clear
  View Solution play_arrow

• question_answer136)
  Majority of mammalian spermatozoa acquire capacitation in :
  A)
  Epididymis done clear
  B)
  Seminal vesicle done clear
  C)
  Female reproductive tract done clear
  D)
  Urethra done clear
  View Solution play_arrow

• question_answer137)
  Arrange in decreasing order according to their gestation period :
  A)
  Monkey, horse, goat, cow and swine done clear
  B)
  Horse, cow, goat, monkey and swine done clear
  C)
  Cow, horse, goat, monkey and swine done clear
  D)
  Monkey, cow, horse, goat and swine done clear
  View Solution play_arrow

• question_answer138)
  Both corpus luteum and macula lutea are :
  A)
  Found in human ovaries done clear
  B)
  A source of hormones done clear
  C)
  Characterized by yellow colour done clear
  D)
  Contributory in maintaining pregnancy done clear
  View Solution play_arrow

• question_answer139)
  The phase of menstrual cycle in humans that lasts for 7-8 days, is :
  A)
  Follicular phase done clear
  B)
  Ovulatory phase done clear
  C)
  Luteal phase done clear
  D)
  Menstruation done clear
  View Solution play_arrow

• question_answer140)
  Which one of the following statements with regard to embryonic development in humans is concerned with :
  A)
  Cleavage divisions bring about considerable increase in the mass of protoplasm done clear
  B)
  In second cleavage division, one of the two blastomeres usually divides a little sooner than the second. done clear
  C)
  With more cleavages, the resultant blastomeres become larger and larger done clear
  D)
  Cleavage divisions result in a hollow ball of cells called morula done clear
  View Solution play_arrow

• question_answer141)
  Which of the following does not represent the 15th to 28th day of menstrual cycle?
  A)
  Premenstrual phase done clear
  B)
  Progestaiional phase done clear
  C)
  Luteal phase done clear
  D)
  Follicular phase done clear
  View Solution play_arrow

• question_answer142)
  The process of formation of primary organ rudiment is called :
  A)
  Neurogenesis done clear
  B)
  Notogenesis done clear
  C)
  Tubulation done clear
  D)
  Mesogenesis done clear
  View Solution play_arrow

• question_answer143)
  Polyspermy is prevented by :
  A)
  Fertilization cone done clear
  B)
  Fertilization membrane done clear
  C)
  Jelly coats done clear
  D)
  Tertiary membrane done clear
  View Solution play_arrow

• question_answer144)
  A fluid-filled cavity present within blastula is called :
  A)
  Archenteron done clear
  B)
  Blastocoel done clear
  C)
  Blastoderm done clear
  D)
  Blastopore done clear
  View Solution play_arrow

• question_answer145)
  The characteristic feature of gastrulation is :
  A)
  Occurrence of more metabolic changes in egg done clear
  B)
  Activation of egg done clear
  C)
  Pace of cellular division is slowed down done clear
  D)
  Formation of fertilization membrane done clear
  View Solution play_arrow

• question_answer146)
  Onset of menstruation is due to :
  A)
  Increase in level of progesterone done clear
  B)
  Fall in level of progesterone done clear
  C)
  Increase in level of FSH done clear
  D)
  Decrease in level of FSH done clear
  View Solution play_arrow

• question_answer147)
  Shortest phase in the menstrual cycle of woman is :
  A)
  Menses done clear
  B)
  Luteal phase done clear
  C)
  Ovulatory phase done clear
  D)
  Follicular phase done clear
  View Solution play_arrow

• question_answer148)
  Which of the following statements is correct?
  A)
  Corpus luteum changes into corpus albicans done clear
  B)
  Corpus luteum degenerates after fertilization done clear
  C)
  Corpus luteum persists throughout pregnancy done clear
  D)
  Corpus luteum is not formed during pregnancy done clear
  View Solution play_arrow

• question_answer149)
  Ovulation in the human female normally takes place during the menstrual cycle :
  A)
  At the beginning of the proliferative phase done clear
  B)
  At the end of proliferative phase done clear
  C)
  At the mid of secretory phase done clear
  D)
  Just before the end of secretory phase done clear
  View Solution play_arrow

• question_answer150)
  Yellow coloured milk secreted by cattle soon after the birth of a calf is called:
  A)
  Cholesterol done clear
  B)
  Colostrum done clear
  C)
  Chyme done clear
  D)
  Chyle done clear
  View Solution play_arrow

• question_answer151)
  The germ layer responsible for the formation of internal ear is :
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Both [a] and [b] done clear
  View Solution play_arrow

• question_answer152)
  _______ have extra-embryonic membranes.
  A)
  Amniotes done clear
  B)
  Anamniote done clear
  C)
  Amphibians done clear
  D)
  Arthropods done clear
  View Solution play_arrow

• question_answer153)
  At menopause, there is rise in urinary excretion of :
  A)
  FSH done clear
  B)
  STH done clear
  C)
  LTH done clear
  D)
  MSH done clear
  View Solution play_arrow

• question_answer154)
  The embryo at 16-celled stage is known as :
  A)
  Morula done clear
  B)
  Gastrula done clear
  C)
  Blastula done clear
  D)
  Blastomere done clear
  View Solution play_arrow

• question_answer155)
  Liver and pancreas are derivatives of :
  A)
  Ectoderm and endoderm done clear
  B)
  Endoderm only done clear
  C)
  Ectoderm and mesoderm done clear
  D)
  Ectoderm and eododerm done clear
  View Solution play_arrow

• question_answer156)
  Yolk plug is formed during :
  A)
  Morula formation done clear
  B)
  Blastula formation done clear
  C)
  Gastrula formation done clear
  D)
  Neurulation done clear
  View Solution play_arrow

• question_answer157)

  On the basis of nature of maternal and foetal tissues, the types of placentae in human female are :

  (1) Haemochorial placenta

  (2) Haemoendothelial placenta

  (3) Cotyledonary placenta

  (4) Deciduate placenta

  Choose the correct answers :

  A)
  1, 2 and 3 are correct done clear
  B)
  1 and 2 are correct done clear
  C)
  1 and 4 are correct done clear
  D)
  1 and 3 are correct done clear
  View Solution play_arrow

• question_answer158)
  Which of the following is correct grouping?
  A)
  Ectoderm - Retina, epidermis and nervous system done clear
  B)
  Mesoderm - Ovary, urinary bladder and kidneys done clear
  C)
  Mesoderm - Kidneys, connective tissue and testis done clear
  D)
  Endoderm - Thyroid, pineal and thymus. done clear
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• question_answer159)
  Fertilization of sperm and ovum takes place in :
  A)
  Ampulla of oviduct done clear
  B)
  Isthmus of oviduct done clear
  C)
  Fimbriae of oviduct done clear
  D)
  None of the above done clear
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• question_answer160)
  Which of the following hormones is not a secretion product of human placenta?
  A)
  Human chorionic gonadotropin done clear
  B)
  Prolactin done clear
  C)
  Oestrogen done clear
  D)
  Progesterone done clear
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• question_answer161)
  The extra-embryonic membranes of mammalian embryo are derived from :
  A)
  Trophoblast done clear
  B)
  Follicle cells done clear
  C)
  Formative cells done clear
  D)
  Inner cell mass done clear
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• question_answer162)
  Primitive gut is referred to which of the following structure during development?
  A)
  Blastopore done clear
  B)
  Blastocoel done clear
  C)
  Archenteron done clear
  D)
  Gastropore done clear
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• question_answer163)
  Find out the wrong statement from the following :
  A)
  Amnion is outer layer containing amniotic fluid that acts as shock absorber to soft embryo done clear
  B)
  Yolk sac is a foetal membrane that helps in nourishment of the embryo done clear
  C)
  In mammals, allantois is not excretory in function done clear
  D)
  Chorio-allantoic membrane develops villi and participates in development of placenta done clear
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• question_answer164)

  Consider the parts labelled in 1, 2, 3 and 4 respectively in the following diagrammatic structure of ovum surrounded by sperms and find out the correct option.

  A)
  1 - Cells of zona pellucida; 2 - Sperm; 3 - Zona pellucida; 4 - Perivitelline space done clear
  B)
  1 - Cells of corona radiata; 2 - Spermatid; 3 - Zona pellucida; 4 - Perivitelline space done clear
  C)
  1 - Cells of corona radiata; 2 - Sperm; 3 - Zona pellucida; 4 - Cell coat done clear
  D)
  1 - Cells of corona radiata; 2 - Sperm; 3 - Zona pellucida; 4 - Perivitelline spaceIss. done clear
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• question_answer165)
  Which layer develops first during embryonic development?
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Both [b] and [c] done clear
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• question_answer166)
  LH surge occurs during which phase of the menstrual cycle in human female?
  A)
  Menstrual phase, done clear
  B)
  At the beginning of proliferative phase done clear
  C)
  Just before the end of proliferative phase done clear
  D)
  At the middle of the cycle done clear
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• question_answer167)
  The extra-embryonic structure that provides nutrition to the embryo or foetus is :
  A)
  Umbilicus done clear
  B)
  Amnion done clear
  C)
  Chorion done clear
  D)
  Placenta done clear
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• question_answer168)

  Menstrual cycle is controlled by :

  (1) Estrogens and progesterone of ovary

  (2) FSH of pituitary

  (3) FSH and LH of pituitary

  (4) Oxytocin hormone

  A)
  1, 2 and 3 are correct done clear
  B)
  1 and 2 are correct done clear
  C)
  2 and 4 are correct done clear
  D)
  1 and 3 are correct done clear
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• question_answer169)
  Which hormone level reaches peak during luteal phase of menstrual cycle?
  A)
  LH done clear
  B)
  Progesterone done clear
  C)
  FSH done clear
  D)
  Estrogens done clear
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• question_answer170)
  Human chorionic gonadotrophin (hcg) is secreted by :
  A)
  Chorion done clear
  B)
  Amnion done clear
  C)
  Corpus luteum done clear
  D)
  Placenta done clear
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• question_answer171)
  The process of delivery of the foetus in the members of order primata is called :
  A)
  Parturition done clear
  B)
  Implantation done clear
  C)
  Fertilization done clear
  D)
  Lactation done clear
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• question_answer172)
  Generally the first movement of the human foetus in the womb is noticed during :
  A)
  1st month done clear
  B)
  3rd month done clear
  C)
  5th month done clear
  D)
  8th month done clear
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• question_answer173)
  The colostrum is abundant in which of the following antibodies?
  A)
  IgM done clear
  B)
  IgE done clear
  C)
  hCG done clear
  D)
  IgA done clear
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• question_answer174)
  The hormone secreted by corpus luteum is :
  A)
  Testosterone done clear
  B)
  Progesterone done clear
  C)
  Hcg done clear
  D)
  Thyroxine done clear
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• question_answer175)
  Which of the following is not a function of progesterone?
  A)
  Gestation done clear
  B)
  Inhibition of ovulation done clear
  C)
  Uterine growth and development done clear
  D)
  Stimulation of mammary secretion done clear
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• question_answer176)
  Ontogenically liver and pancreas are :
  A)
  Ectodermal done clear
  B)
  Mesodermal done clear
  C)
  Endodermal done clear
  D)
  Mesophyll done clear
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• question_answer177)
  The foetal ejection reflex in humans triggers the release of
  A)
  oxytocin from foetal pituitary done clear
  B)
  human chorionic gonadotropin (hCG) from, placenta done clear
  C)
  human placental lactogen (hPL) from placenta done clear
  D)
  oxytocin from maternal pituitary done clear
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• question_answer178)
  Metadiscoidal placenta is found in :
  A)
  Pig done clear
  B)
  Rabbit done clear
  C)
  Cow done clear
  D)
  Humans done clear
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• question_answer179)
  Which of the following hormones are secreted in large quantities during pregnancy in women?
  A)
  LH, estrogen and estradiol done clear
  B)
  hCG, progesterone, estradiol and FSH done clear
  C)
  hCG and hPL done clear
  D)
  hCG, hPL, progesterone, estrogen and LH done clear
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• question_answer180)
  The correct sequence of embryonic development is
  A)
  Blasrula - Morula - Zygote - Gastrula - Embryo done clear
  B)
  Zygote - Blastula - Morula - Gastrula - Embryo done clear
  C)
  Zygote - Morula - Blastula - Gastrula - Embryo done clear
  D)
  Gastrula - Morula - Zygote - Blastula - Embryo done clear
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• question_answer181)
  Which of the following hormones initiate the parturition?
  A)
  ACTH, HCG, Oxytocin done clear
  B)
  ACTH, Corticosteroid, Oxytocin done clear
  C)
  Corticosteroid, ACTH, Prostaglandin done clear
  D)
  ACTH, Progesteron, HCG done clear
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