Follicular atresia is

(1) Formation of corpus luteum

(2) Degeneration of folliciles 

(3) Formation of Graffian follicle

(4) Increase in number of follicles

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

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

1. Granulosa

2. Theca interna

3. Stroma

4. Zona pellucida

Which of the following hormones show two peaks during a standard menstrual cycle?

In which phase of menstrual cycle three peaks are observed at once?