Sertoli cells are found in

1. ovaries and secrete progesterone

2. adrenal cortex and secrete adrenalin

3. seminiferous tubules and provide nutrition to germ cells

4. pancreas and secrete cholecystokinin

In the vertebrates testes, for nourishment during spermiogenesis, the spermatids get attached to

(1) Interstitial cells

(2) Sperm-mother cells

(3) Spermatocytes

(4) Sertoli cells

FSH:

1. Acts on Sertoli cells and stimulates secretion of some factors that help in spermiogenesis

2. Acts on Sertoli cells and inhibits secretion of some factors that help in spermiogenesis

3. Acts on Leydig cells and stimulates secretion of some factors that help in spermiogenesis

4. Acts on Leydig cells and inhibits secretion of some factors that help in spermiogenesis

Arrange the following process starting from the germ
cells of seminiferous tubule?
(i) Meiotic division in secondary spermatocytes.
(ii) Spermiation.
(iii) Spermiogenesis.
(iv) Capacitation.

1. (i), (ii), (iii), (iv)
2. (i), (iii), (ii), (iv)
3. (ii), (i), (iv), (iii)
4. (i), (ii), (iv), (iii)

Which of the following is wrong?

Which of the following cells during gametogenesis is normally diploid?

1. Primary polar body

2. Spermatid

3. Spermatogonia

4. Secondary polar body

Which of the following cell completes the first meiotic division leading to the formation of two equal, haploid cells?
1. Spermatogonium
2. Primary spermatocytes
3. Secondary spermatocytes
4. Spermatids

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

The level of which hormone gets increased first and stimulate spermatogenesis at puberty?

Each seminiferous tubule is lined on its inside by:

1. Spermatogonia

2. Primary spermatocytes

3. Sertoli cells

4. Both 1 and 3