-
question_answer1)
Testis produce [DPMT 1992]
A)
Sperms done
clear
B)
Eggs done
clear
C)
Seeds done
clear
D)
Spores done
clear
View Solution play_arrow
-
question_answer2)
The process of releasing the ripe female gamete from the ovary is called [CPMT 1988]
A)
Parturition done
clear
B)
Ovulation done
clear
C)
Fertilization done
clear
D)
Implantation done
clear
View Solution play_arrow
-
question_answer3)
Ovulation in mammals refers to
A)
Release of ovum from ovary done
clear
B)
Formation of primary oocyte in ovary done
clear
C)
Degeneration of unfertilized ovum done
clear
D)
Fertilization of mature ovum done
clear
View Solution play_arrow
-
question_answer4)
Germ cells in mammalian gonads are produced by [CPMT 1992, 93; MP PMT 1997, 2000]
A)
Only mitosis done
clear
B)
Only meiosis done
clear
C)
Mitosis and meiosis both done
clear
D)
Without cell division done
clear
View Solution play_arrow
-
question_answer5)
The breakage of the membrane surrounding the acrosome in a mammalian sperm is [MP PMT 1994]
A)
Activation done
clear
B)
Cavitation done
clear
C)
Agglutination done
clear
D)
Capacitation done
clear
View Solution play_arrow
-
question_answer6)
The acrosome plays important role in [MP PMT 1999, 2000]
A)
Motility of sperm done
clear
B)
Penetration of ovum by sperm done
clear
C)
The fusion of pronuclei of the gametes done
clear
D)
None of these done
clear
View Solution play_arrow
-
question_answer7)
Which of the following statements is incorrect. Human spermatozoa normally
A)
At a concentration of 1 million/ml of ejaculate will fertilize the ovum done
clear
B)
Are released in large numbers after a few days abstinence done
clear
C)
Contain enzyme in their head which helps in penetration of ovum done
clear
D)
Move with the help of their tails done
clear
View Solution play_arrow
-
question_answer8)
Survival time of sperms introduced into the vagina may be
A)
1-2 days done
clear
B)
3-4 days done
clear
C)
5-10 days done
clear
D)
1 week done
clear
View Solution play_arrow
-
question_answer9)
The human sperms were first seen and discovered by
A)
Ernst Haeckel done
clear
B)
Hamm and Leeuwenhoek done
clear
C)
Louis Pasteur done
clear
D)
Robert Hooke done
clear
View Solution play_arrow
-
question_answer10)
Polar bodies are formed during
A)
Spermatogenesis done
clear
B)
Oogenesis done
clear
C)
Gametogenesis done
clear
D)
Spermateleosis done
clear
View Solution play_arrow
-
question_answer11)
In frog chromosome no. is reduced to half [BHU 2003]
A)
When 2nd polar body is separated done
clear
B)
When 2nd polar body is divided done
clear
C)
When 3rd polar body is separated done
clear
D)
When 1st polar body is separated done
clear
View Solution play_arrow
-
question_answer12)
Nebenkern is a part of [KCET 2004]
A)
Foetus done
clear
B)
Graafian follicle done
clear
C)
Human ovum done
clear
D)
Human sperm done
clear
View Solution play_arrow
-
question_answer13)
In mammalian sperm, spirally arranged mitochondria are present in [MHCET 2001]
A)
Head portion done
clear
B)
Middle piece done
clear
C)
End piece of the tail done
clear
D)
Principal piece of tail done
clear
View Solution play_arrow
-
question_answer14)
Acrosome of sperm is formed from [MP PMT 2004; CPMT 2005]
A)
Nucleus of spermatid done
clear
B)
Mitochondria of spermatid done
clear
C)
Golgi complex of spermatid done
clear
D)
Centrosome of spermatid done
clear
View Solution play_arrow
-
question_answer15)
Sperm?s acrosome has [Manipal 2005]
A)
Hyaluronic acid and proacrosine done
clear
B)
Hyaluronic acid and fertilizin done
clear
C)
Hyaluronidase and proacrosin done
clear
D)
Fertilizin and proacrosin done
clear
View Solution play_arrow
-
question_answer16)
A cross section at the midpoint of the middle piece of a human sperm will show [AIIMS 2005]
A)
Centriole, mitochondria and 9+2 arrangement of microtubules done
clear
B)
Centriole and mitochondria done
clear
C)
Mitochondria and 9+2 arrangement of microtubules done
clear
D)
9+2 arrangement of microtubules only done
clear
View Solution play_arrow
-
question_answer17)
Which of the following is 'immortal' [BHU 2005]
A)
Somatic cell done
clear
B)
Glomerular cells done
clear
C)
Germ cells done
clear
D)
Cells of pituitary done
clear
View Solution play_arrow
-
question_answer18)
Sperms formed from 4 primary spermatocytes are [CPMT 2005]
A)
4 done
clear
B)
1 done
clear
C)
16 done
clear
D)
32 done
clear
View Solution play_arrow
-
question_answer19)
During embryonic development the establishment of polarity along anterior/posterior, dorsal/ventral or medial/lateral axis is called [CPMT 2005]
A)
Anamorphosis done
clear
B)
Organizer phenomena done
clear
C)
Pattern formation done
clear
D)
Axis formation done
clear
View Solution play_arrow
-
question_answer20)
What do you mean by the term spermateleosis [MH CET 2004; Manipal 2005]
A)
Conversion of spermatids to sperm done
clear
B)
Conversion of spermogohium to spermatid done
clear
C)
Conversion of spermatid to spermogonium done
clear
D)
Conversion of primary spermatocyte to secondary spermatocyte done
clear
View Solution play_arrow
-
question_answer21)
Spermatogonia formed after which cell division [Haryana PMT 2005]
A)
Meiosis I done
clear
B)
Meiosis II done
clear
C)
Mitosis done
clear
D)
Amitosis done
clear
View Solution play_arrow
-
question_answer22)
Match the following with correct combination [Kerala CET 2005]
[a] Hyaluronidase |
(i) Acrosomal reaction |
[b] Corpus luteum |
(ii) Morphogenetic movements |
[c] Gastrulation |
(iii) Progesterone |
[d] Capacitation |
(iv) Mammary gland |
[e] Colostrum |
(v) Sperm activation |
A)
[a]-(v), [b]-(ii), [c]-(iv), [d]-(i), [e]-(iii) done
clear
B)
[a]-(i), [b]-(iii), [c]-(ii), [d]-(v), [e]-(iv) done
clear
C)
[a]-(i), [b]-(ii), [c]-(iii), [d]-(iv), [e]-(v) done
clear
D)
[a]-(iv), [b]-(ii), [c]-(v), [d]-(iii), [e]-(i) done
clear
View Solution play_arrow
-
question_answer23)
Hormone responsible for metamorphosis in tadpole is [Manipal 2005]
A)
Adrenaline done
clear
B)
Thyroxine done
clear
C)
Aldasterone done
clear
D)
Vasopressin done
clear
View Solution play_arrow