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A : in morula stage the cells divide w...

A : in morula stage the cells divide without any increase in size
R : zona pellucida remains intact till cleavage is completed

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
B
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TRUEMAN BIOLOGY-Animal Physiology -ASSERTION AND REASON
  1. [A] : Amniotic fluid serves as a protective cushion. [R]: It breaks...

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  2. [A]: Entry of sperm brings about a nearrange- ment of materials of cyt...

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  3. A : in morula stage the cells divide without any increase in siz...

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  4. [A]: Brain does not affect in the absence of glucose. [R]: Glucose ...

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  5. [A]: After operation, menstrual cycle in woman may be stopped. [R]...

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  6. Assertion : In placental mammals the placenta is connected to the e...

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  7. Assertion: Smaller the organism higher is the rate of metabolism per g...

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  8. [A] : Haversian canals are inter connecting canals that run usually lo...

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  9. [A]: Conjunctiva is composed of squamous epithelium and is continuous ...

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  10. [A]: During ovarian cycle follicles are con- trolled by gonadotropic h...

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  11. [A] : Hydrostatic pressure in blood forces water and other solutes of...

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  12. [A]: Emboly involves the invagination and in- volution through bottlin...

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  13. [A]: Each testis is attached to the abdominal wall by a ligament and u...

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  14. [A]: Taste buds are called the sense organs for olfaction [R]: Tas...

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  16. Assertion Muscle as a whole does not obey All-or-none law. Reason ...

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  17. [A]: Generally the intraspecific competition is more intense than inte...

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  18. [A]: The tadpoles become giant tadpoles when fed on thiourea. [R]: ...

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  19. [A]: Pinna of ear is quite elastic and pliable. [R]: Pinna Qf ear ...

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  20. [A]: Muscle twitch is related with tetanus [R]: Tetanus is caused b...

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