Human Reproduction

Arrange the following cell layers/structures around the female gamete, from outer to inner side : Choose the correct answer from the options given below :

1. D, B, A, C
2. A, C, B, D
3. C, A, D, B
4. C, A, B, D

Spermatogonia undergo a series of cell divisions to produce sperms. Select the correct statements from the following: Choose the correct answer from the options given below :

1. A, C and E only
2. C and E only
3. A and E only
4. B, C and D only

The covering of ovum at ovulation is .

1. chorion
2. endometrium
3. zona radiata
4. zona pellucida

Match List-I with List-II. Choose the correct answer from the options given below :

1. A-III, B-IV, C-II, D-I
2. A-III, B-II, C-I, D-IV
3. A-IV, B-III, C-I, D-II
4. A-IV, B-III, C-II, D-I

Consider the following : Choose the correct answer from the options given below:

1. B and D are true
2. B and C are true
3. A and B are true
4. A and C are true

Identify the correct option (A), (B), (C), (D) with respect to spermatogenesis. [figure]

1. FSH, Leydig cells, Sertoli cells, spermiogenesis.
2. ICSH, Interstitial cells, Leydig cells, spermiogenesis.
3. FSH, Sertoli cells, Leydig cells, spermatogenesis.
4. ICSH, Leydig cells, Sertoli cells, spermatogenesis.

Which of the following statements are true for spermatogenesis but do not hold true for Oogenesis? Choose the most appropriate answer from the options given below :

1. C and D only
2. B and C only
3. B, D and E only
4. B, C and E only

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct

At which stage of life the oogenesis process is initiated?

1. Puberty
2. Embryonic development stage
3. Birth
4. Adult

How many secondary spermatocytes are required to form 400 million spermatozoa?

1. 400 million
2. 50 million
3. 100 million
4. 200 million

The difference between spermiogenesis and spermiation is

1. in spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed
2. in spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed
3. in spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed
4. in spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules

Identify the correct statement on 'inhibin'.

1. Is produced by granulosa cells in ovary and inhibits the secretion of LH
2. Is produced by nurse cells in testes and inhibits the secretion of LH
3. Inhibits the secretion of LH, FSH and prolactin
4. Is produced by granulosa cells in ovary and inhibits the secretion of FSH

Match column I with column II and select the correct option using the codes given below.

1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
2. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
3. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
4. (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)

In human females, meiosis-II is not completed until

1. uterine implantation
2. birth
3. puberty
4. fertilisation

Which of the following layers in an antral follicle is acellular?

1. Stroma
2. Zona pellucida
3. Granulosa
4. Theca interna

Which of the following cells during gametogenesis is normally diploid?

1. Spermatogonia
2. Secondary polar body
3. Primary polar body
4. Spermatid

What is the correct sequence of sperm formation?

1. Spermatogonia, spermatozoa, spermatocytes, spermatids
2. Spermatogonia, spermatocytes, spermatids, spermatozoa
3. Spermatids, spermatocytes, spermatogonia, spermatozoa
4. Spermatogonia, spermatocytes, spermatozoa, spermatids

Which one of the following statements about human sperm is correct?

1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilisation
2. The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilisation
3. Acrosome serves as a sensory structure leading the sperm towards the ovum
4. Acrosome serves no particular function

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is:

1. spermatocyte - spermatogonia - spermatid - sperms
2. spermatogonia - spermatid - spermatocyte - sperms
3. spermatid - spermatocyte - spermatogonia - sperms
4. spermatogonia - spermatocyte - spermatid - sperms

In humans, at the end of the first meiotic division, the male germ cells differentiate into the:

1. secondary spermatocytes
2. spermatogonia
3. primary spermatocytes
4. spermatids

Sertoli cells are regulated by the pituitary hormone known as-

1. LH
2. FSH
3. GH
4. Prolactin