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[A] : [A]: Spennatogenesis occurs in the...

[A] : [A]: Spennatogenesis occurs in the seminif erous tubules of the testes which also pro- duce testosterone in interstitial cells.
[R]: Testosterone maintains the secondary sex characteristics of males, such as low voice, facial hair and increased muscle strength.

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

Verified by Experts

The correct Answer is:
B
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TRUEMAN BIOLOGY-Animal Physiology -ASSERTION AND REASON
  1. [A] : In old age, the skin gets wrinkled. [R]: Epidermis has a sin...

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  2. [A] : In Mammals sweat glands are primarily concerned with regulation...

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  3. [A] : [A]: Spennatogenesis occurs in the seminif erous tubules of the ...

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  4. Statememt 1 : In a Graafian follicle, the primary cell, the and the f...

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  5. [A] : Amniotic fluid serves as a protective cushion. [R]: It breaks...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  19. (A]: Little rotation and bending of the vertebral column is possible. ...

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

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