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 triggers 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

Fertilisation in humans is practically feasible only if

1. the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the fallopian tube
2. the ovum and sperms are transported simultaneously to ampullary-isthmic junction of the cervix
3. the sperms are transported into cervix within 48 hrs of release of ovum in uterus
4. the sperms are transported into vagina just after the release of ovum in fallopian tube

Ectopic pregnancies are referred to as

1. pregnancies with genetic abnormality

2. implantation of embryo at site other than uterus

3. implantation of defective embryo in the uterus

4. pregnancies terminated due to the hormonal imbalance

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

In human females, meiosis-II is not completed until 

1. Puberty

2. fertilization 

3. Uterine implantation 

4. birth 

Which of the following cells during gametogenesis is normally diploid?

1. Primary polar body

2. Spermatid

3. Spermatogonia

4. Secondary polar body

The shared terminal duct of the reproductive and urinary system in the human male is 

1. Urethra

2. Ureter

3. Vas deferens

4. Vasa efferentia

The main function of mammalian corpus luteum is to produce

1. estrogen only

2. progesterone

3. human chorionic gonadotropin

4. relaxin only