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An egg of bird was coated with varnish a...

An egg of bird was coated with varnish and then incubated . The egg did not hatch because the developing embryo

A

could not excrete and died

B

could not yolk in the presence of excess amount of nitrogenous wastes

C

died because of depleted `O_2` supply

D

died because of toxic effect of varnish

Text Solution

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The correct Answer is:
C
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MOTION-HUMAN REPRODUCTION -EXERCISE - 2 (NCERT BASED QUESTIONS)
  1. In which of the following animals the sperm can survive for a longer p...

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  2. At which stage of spermatogenesis sperm acquire their whole structural...

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  3. An egg of bird was coated with varnish and then incubated . The egg di...

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  4. How many sperm and ova will be formed from 50 secondary oocytes and 50...

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  5. Human egg has :

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  6. In telolecithal egg the yolk is found

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  7. Egg with peripheral cytoplasm around the yolk is

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  8. Oocyte is liberated from ovary under the influence of LH, after compl...

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  9. Extrusion of second polar body from egg nucleus occurs

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  10. When both ovaries are removed from a rat which harmone is decreased in...

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  11. In a 30 year old lady, eggs are released in form of

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  12. In the diagram of section of Graafian follicle , different parts are i...

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  13. Stages in menstrual cycle are

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  14. If the menstrual cycle is of 35 days then what is risk period (cycle s...

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  15. After ovulation follicles converted into :-

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  16. Ovulation in the human female normally takes place during the menstrua...

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  17. Correct sequence of hormone secretion from beginning of menstruation i...

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  18. At ovulation , the mammalian egg is covered by a membrane called:

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  19. How many cleavages are required for formation of 16 blastomeres .

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  20. The blastomeres in the blastocyst are arranged into an outer layer A a...

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