GnRH release by hypothalamus would be decreased due to:
1. decreased inhibin
2. increased testosterone
3. decreased FSH
4. decreased LH

In fallopian tube, the part called as the ampulla:
1. opens into the uterus.
2. is the narrowest part.
3. is connected to the isthmus of the fallopian tube.
4. is lined with stratified squamous epithelium.

The mature follicle mainly secretes:
1. estrogen
2. progesterone
3. inhibin
4. relaxin

Non primate mammalian females have:
1. a follicular cycle
2. an estrous cycle
3. a menstrual cycle
4. a luteal cycle

The first structure amongst the following to receive sperms would be:
1. vas deferens
2. urethra
3. epididymis
4. seminal vesicle

Male fertility primarily depends on sperm count. Sterility is likely if the count is below:
1. 100,000,000 / ml
2. 20,000,000 / ml
3. 100,000 / ml
4. 1,000 / ml

Which hormone is the immediate cause of ovulation?
1. FSH
2. progesterone
3. estrogen
4. LH

Largest amongst the following would be:
1. spermatid
2. mature egg cell
3. polar body
4. secondary spermatocyte

Identify the source of testosterone in males:
1. seminiferous tubules
2. epididymis
3. Sertoli cells
4. Leydig cells

To inhibit ovulation, the corpus luteum secretes:
1. inhibin
2. activin
3. estrogen
4. progesterone