The testes are situated outside the abdominal cavity within a pouch called scrotum. This is necessary as:

1. The scrotum can contain lengthy ducts for the transfer of sperms

2. Scrotum helps in maintaining the low temperature of the testes necessary for spermatogenesis

3. Scrotum reduces the pressure around testes necessary for spermatogenesis

4. Scrotum can store huge amounts of sperms

Each seminiferous tubule is lined on its inside by:

1. Spermatogonia

2. Primary spermatocytes

3. Sertoli cells

4. Both 1 and 3

Leydig cells:

1. Are present in seminiferous tubules and secrete androgens

2. Are present in seminiferous tubules and help in maturation of sperms

3. Are present in interstitial space and secrete androgens

4. Are present in interstitial space and help in maturation of sperms

Seminal plasma is rich in:

1. Sucrose, calcium and certain enzyme

2. Glucose, sodium and certain enzymes

3. Fructose, calcium and certain enzymes

4. Fructose, sodium and certain enzymes

Each Ovary is connected to the pelvic wall and the uterus by:

1. Peritoneum

2. Adipose tissue

3. Ligaments

4. Areolar tissue

Consider the following two statements:

I. The hymen is often torn during the first coitus.

II. The presence or absence of hymen is a reliable indicator of virginity.

Of the two statements:

1. Both I and II are correct and II explains I.

2. Both I and II are correct and II does not explain I.

3. I is correct but II is incorrect.

4. Both I and II are incorrect.

The correct sequence of mammalian mammary gland ducts beginning from alveoli would he:

The spermatids are transformed into spermatozoa by the process called:

1. Spermiation

2. Spermatocytogenesis

3. Spermiogenesis

4. Spermatolysis

The final release of sperms from the seminiferous tubules is called:

1. Spermiation

2. Emission

3. Retrograde ejaculation

4. Ejaculation

For normal fertility what percent of the sperm in ejaculation must exhibit vigorous motility?

1. 20

2. 30

3. 40

4. 60