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Which of the following is not correct fo...

Which of the following is not correct for gastrulation ?

A

Archenteron is formed

B

All germinal layers are formed

C

Morphogenetic movements

D

Blastomeres and gastrocoel degenerate

Text Solution

Verified by Experts

The correct Answer is:
D
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ALLEN-REPRODUCTIVE SYSTEM , EMBRYOLOGY AND REPRODUCTIVE HEALTH -Exercise-III(A) (Ncert Based Questions)
  1. During oogenis , the small structures separated from egg is :

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  2. Foetal sex can be determined by examining cells from the amniotic flui...

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  3. Which of the following is not correct for gastrulation ?

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  4. On human foetus, the heart begins to beat at development age of

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  5. Development of animal embryo from an unfertilized egg is called

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  6. During embryonic development , endoskeleton and muscle develop from wh...

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  7. Polar body is produced durign the formation of

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  8. Fertilization of ovum occurs in

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  9. In a vertebrate which germ layer forms the skeletal muscles ?

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  10. Liver and pancreas of frog and rabbit are derived from :

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  11. Which layer develops first durign embryonic development?

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  12. Acrosome of sperm is formed from

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  13. The nervous system of vertebrates is derived from :

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  14. Cavity formed during gastrulation is

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  15. The occurrence of mitochondria in sperm is

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  16. Identical twins are born when:

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  17. Which set of enzymes is found in the acrosome of mammalian spermatozoa...

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  18. Fixing up of blastocyst in the wall of the uterus is known as

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  19. The type of placenta find in human beings is of type :

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  20. Plaenta in human beings is formed by

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