Identify the correct statement on ‘inhibin'
1. Is produced by granulosa cells in ovary and inhibits the secretion of FSH
2. Is produced by granulosa cells in ovary and inhibits the secretion of LH
3. Is produced by nurse cells in testes and inhibits the secretion of LH
4. Inhibits the secretion of LH, FSH and prolactin

Select the incorrect statement
1. LH and FSH trigger ovulation in ovary
2. LH and FSH decrease gradually during the follicular phase
3. LH triggers secretion of androgens from the Leydig cells
4. FSH stimulates the Sertoli cells which help in spermiogenesis

Which of the following events is not associated with ovulation in human female?
1. Decrease in oestradiol
2. Full development of Graafian follicle
3. Release of secondary oocyte
4. LH surge

Which of the following layers in an antral follicle is acellular?
1. Granulosa
2. Theca interna
3. Stroma
4. Zona pellucida

Select the correct option describing gonadotropin activity in a normal pregnant female
1. High level of FSH and LH stimulates the thickening of endometrium
2. High level of FSH and LH facilitate implantation of the embryo
3. High level of HCG stimulates the synthesis of estrogen and progesterone
4. High level of HCG stimulates the thickening of endometrium

A change in the amount of yolk and its distribution in the egg will affect
1. formation of zygote
2. pattern of cleavage
3. number of blastomeres produced
4. fertilization

In humans, at the end of the first meiotic division, the male germ cells differentiate into
1. primary spermatocytes
2. secondary spermatocytes
3. spermatids
4. spermatogonia

Which extra embryonic membrane in humans prevents desiccation of the embryo inside the uterus?
1. Chorion
2. Allantois
3. Yolk sac
4. Amnion

The phase of menstrual cycle in humans that lasts for 7-8 days is:
1. follicular phase
2. ovulatory phase
3. luteal phase
4. menstruation

Which of the following is true regarding sperm?
1. Fertilizin : For penetrating egg membrane
2. Hyaluronidase : For penetrating egg membrane
3. Acrosin : Dissolves corona radiata
4. Capacitation : Takes place in penis