Assertion (A): Leydig cells produce oestrogen and progesterone.

Reason (R): Leydig cells are also called as interstitial cells which are located as packing tissues between the coils of seminiferous tubules.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): Prostate gland pours an alkaline secretion which neutralizes the acidic pH of the vagina.

Reason (R): Prostate gland is a lobulated gland located between the posterior surface of the urinary bladder and the rectum.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): Lamarck's theory of inheritance of acquired characters is mainly based on "survival of the fittest".

Reason (R): Lamarck has explained his principle of 'use and disuse' with the example of Giraffe's neck.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.

Assertion (A): The analogous organ to the vermiform appendix in herbivorous mammals is quite helpful in digesting cellulose. But it is considered a vestigial organ in humans.

Reason (R): Vermiform appendix is a wide worm-like tubular structure, projecting from the blind part of the colon (a part of large intestine). Its function is the same as that of the colon, i.e., absorption of water and some remnants of digested food.

1. Both A and R are True
2. Both A and R are False
3. A is True and R is False.
4. A is False and R is True.