Download App

STD 12 - 2. human reproduction — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 2. human reproduction4 Marks
MCQ
Changes in $GnRH$ pulse frequency in femail is controlled by circulating levels of
  • A
    progesterone only
  • B
    progesterone and inhibin
  • ✓
    estrogen and progesterone
  • D
    estrogen and inhibin.
✓

Answer

Correct option: C.
estrogen and progesterone
c
(c) : $GnRH$ is secreted by the hypothalamus which stimulates the anterior lobe of pituitary gland to secrete luteinising hormone $(LH) $ and $FSH$. $FSH $ stimulates the growth of the ovarian follicles and stimulates the formation of estrogens. $LH$ stimulates the corpus luteum to secrete progesterone. Rising levels of progesterone and estrogen inhibits the release of $GnRH$, which in turn, inhibits the production of $FSH$ and $LH$.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Urea in human urine is derived from the break down of
→
Tongue bone is
→
Evolution that shift the allele frequency in a study consistent direction is called?
→
Amoug the human ancestors, the brain size was more than $1000\, cc$ in
→
Angiotensin is derived from plasma protein "angiotensinogen'' by the action of renin and other nervous stimuli. Angiotensin stimulates the following
→
During hibernation, frog respires with
→
Acetabulum is a deep depression on the outer surface of
→
What is the function of Bowman's capsule and Glomerulus
→
The tendency of genes to remain together during the process of inheritance is known as
→
The granulocyte to arrive first at the site of an infection is
→