NEET Biology Human Reproduction Question Bank

done Implantation and Gastrulation Total Questions - 35

• question_answer1)
  Pseudopregnancy is a physiological condition comparable to normal pregnancy except that there is no [AMU 1989]
  A)
  Developing ovum done clear
  B)
  Developing foetus done clear
  C)
  Corpus luteum done clear
  D)
  Endometrial changes done clear
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• question_answer2)
  Which of the embryo has parasite mode of nutrition. [CPMT 1980; BHU 1980]
  A)
  Bird's embryo done clear
  B)
  Amphibian embryo done clear
  C)
  Reptilian embryo done clear
  D)
  Mammalian embryo done clear
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• question_answer3)
  Implantation of egg is followed by
  A)
  Fertilization done clear
  B)
  Copulation done clear
  C)
  Parturition done clear
  D)
  Gestation done clear
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• question_answer4)
  If the nuclei from an 8-celled stage of an embryo are transplanted into enucleated eggs, which of the following events is likely to occur [MP PMT 1990]
  A)
  Formation of viable embryo in the recipient eggs done clear
  B)
  Donor nuclei die in the new environment done clear
  C)
  Cleavage occurs but is arrested after some time done clear
  D)
  Recipient egg dies done clear
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• question_answer5)
  Implantation is the process of [MP PMT 2002]
  A)
  Fertilization of egg done clear
  B)
  Movement of egg done clear
  C)
  Degeneration of egg done clear
  D)
  Attachment of blastocyst to the uterine wall done clear
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• question_answer6)
  In human female the fertilized eggs gets implanted in uterus
  A)
  After two months of fertilization done clear
  B)
  After one month of fertilization done clear
  C)
  After 3 weeks of fertilization done clear
  D)
  After about 7 days of fertilization done clear
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• question_answer7)
  Which one of the following list contains only the mesodermal structures [MP PMT 1992]
  A)
  Muscles, blood, notochord, liver done clear
  B)
  Bones, blood, heart, liver done clear
  C)
  Muscles, blood, heart, liver done clear
  D)
  Bones, blood, heart, notochord done clear
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• question_answer8)
  The endodermel derivatives include [AIIMS 1987]
  A)
  Thyroid done clear
  B)
  Pineal gland done clear
  C)
  Spleen done clear
  D)
  Pituitary done clear
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• question_answer9)
  During  gastrulation ....... is formed [CPMT 1978; DPMT 1992]
  A)
  Heart done clear
  B)
  Gill done clear
  C)
  Archenteron done clear
  D)
  Vitelline membrane done clear
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• question_answer10)
  Mesoderm gives rise to all the structures except   [NCERT 1984]
  A)
  Nervous system done clear
  B)
  Muscular system done clear
  C)
  Circulatory system done clear
  D)
  Gonads done clear
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• question_answer11)
  The nerve cells, brain and spinal cord or central nervous system develops from embryonic [CPMT 1974, 75, 80, 84; AFMC 1985; RPMT 2000]
  A)
  Ectoderm done clear
  B)
  Endoderm done clear
  C)
  Mesoderm done clear
  D)
  Both [a] and [b] done clear
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• question_answer12)
  The yolk plug is a structure in gastrula which is formed by the protrusion of
  A)
  Endodermal cells done clear
  B)
  Endo-mesodermal cells done clear
  C)
  Ectodermal cells done clear
  D)
  Mesodermal cells done clear
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• question_answer13)
  After gastrulation the roof of archenteron is formed by [CPMT 1987]
  A)
  Neural plate done clear
  B)
  Mesoderm done clear
  C)
  Ectoderm done clear
  D)
  Chorda-mesoderm done clear
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• question_answer14)
  Formation of notochord or the central axial chord in vertebrates is known as [CPMT 1972]
  A)
  Neurulation done clear
  B)
  Blastulation done clear
  C)
  Morulation done clear
  D)
  Notogenesis done clear
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• question_answer15)
  The rolling of endodermal and mesodermal cells from the surface of embryo into its interior is called [MP PMT 1987; CBSE PMT 1993]
  A)
  Ingression done clear
  B)
  Invagination done clear
  C)
  Involution done clear
  D)
  Inversion done clear
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• question_answer16)
  Vascular system and excretory organs are developed from [CPMT 1990; KCET 1994]
  A)
  Mesoderm done clear
  B)
  Ectoderm done clear
  C)
  Endoderm done clear
  D)
  None of the above done clear
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• question_answer17)
  Gastrulation is the process which involves the differentiation of the following layers in a vertebrate embryo [NCERT 1981]
  A)
  Ectoderm and mesoderm done clear
  B)
  Ectoderm and endoderm done clear
  C)
  Endoderm and mesoderm done clear
  D)
  Ectoderm, endoderm and mesoderm done clear
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• question_answer18)
  Which of the following is correct [CPMT 1984; MP PMT 1988, 98]
  A)
  Mesoderm produces brain done clear
  B)
  Ectoderm produces liver done clear
  C)
  Mesoderm produces skeleton done clear
  D)
  Endoderm produces heart done clear
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• question_answer19)
  Blastopore is found in [NCERT 1976; CPMT 1971, 74, 76, 79, 80, 81; DPMT 1993; MP PMT 1996]
  A)
  Gastrula done clear
  B)
  Blastula done clear
  C)
  Morula done clear
  D)
  Neurula done clear
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• question_answer20)
  The skeleton and muscles originate in the development from or During embryonic development endoskeleton and muscles develop from which germinal layer [CPMT 1979; MP PMT 1996]
  A)
  Ectoderm done clear
  B)
  Endoderm done clear
  C)
  Mesoderm done clear
  D)
  Yolk plug done clear
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• question_answer21)
  Which one of the following is derived from ectoderm [DPMT 1993]
  A)
  Enamel of teeth done clear
  B)
  Dentine done clear
  C)
  Skull done clear
  D)
  Axial skeleton done clear
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• question_answer22)
  The cavity of gastrula is called [AFMC 1985; MH-CET 2003]
  A)
  Blastocoel done clear
  B)
  Coelom done clear
  C)
  Archenteron done clear
  D)
  Haemocoel done clear
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• question_answer23)
  Gonads are derived from embryonic [CBSE PMT 1990]
  A)
  Mesoderm done clear
  B)
  Endoderm done clear
  C)
  Ectoderm done clear
  D)
  Mesoderm and endoderm done clear
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• question_answer24)
  Archenteron is lined with [CPMT 1993]
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Mesoderm and endoderm done clear
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• question_answer25)
  During the development of an embryo, migration and rearrangement of cells lead to a pattern formation known as [MP PMT 1994]
  A)
  Epiboly done clear
  B)
  Emboly done clear
  C)
  Involution done clear
  D)
  Gastrulation done clear
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• question_answer26)
  The mammalian primitive streak gives rise to   [MP PMT 1994]
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Germ layers done clear
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• question_answer27)
  Pasteels (1945) described gastrulation takes place in aves by
  A)
  Infiltration done clear
  B)
  Delamination done clear
  C)
  Concrescence done clear
  D)
  Polyinvagination done clear
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• question_answer28)
  During gastrulation the dorsal lip of blastopore (1 external sign of gastrulation) appears
  A)
  Anteriorly in the pigmented area of egg done clear
  B)
  Posteriorly in the yolky cytoplasmic area done clear
  C)
  In the centre of the egg done clear
  D)
  Behind the grey crescent area done clear
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• question_answer29)
  Brain originates from which germ layer [RPMT 1995]
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Ectomesoderm done clear
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• question_answer30)
  In the first phase of gastrulation of amphibians there occurs the separation of
  A)
  Ectoderm done clear
  B)
  Mesoderm done clear
  C)
  Endoderm done clear
  D)
  Mesoectoderm done clear
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• question_answer31)
  In which order, three germ layers appear in the development
  A)
  Ectoderm-mesoderm-endoderm done clear
  B)
  Ectoderm-endoderm-mesoderm done clear
  C)
  Mesoderm-endoderm-ectoderm done clear
  D)
  None of the above done clear
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• question_answer32)
  In which stage is blastocoele formed [MP PMT 1999]
  A)
  Morula done clear
  B)
  Blastula done clear
  C)
  Gastrula done clear
  D)
  None of these done clear
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• question_answer33)
  The structure which differentiate gastrula from blastula [RPMT 1999]
  A)
  3 germ layers done clear
  B)
  Micromeres done clear
  C)
  Blastocoel done clear
  D)
  None of these done clear
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• question_answer34)
  Coelom is found between the cavity of [BHU 2000]
  A)
  Ectoderm and endoderm done clear
  B)
  Mesoderm and ectoderm done clear
  C)
  Body wall and ectoderm done clear
  D)
  Mesoderm and body wall done clear
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• question_answer35)
  In which stage of development the embryonic cells form the germinal layers by the movement [RPMT 2001]
  A)
  Morula done clear
  B)
  Blastula done clear
  C)
  Gastrula done clear
  D)
  Neurula done clear
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