The dropping levels of estrogen and progesterone seem to be the cause of the onset of menopause and its symptoms. What is the approximate number of primordial follicles in the ovary of a woman of age 50?

Less than 1000

Explanation:

Approximately at the age of 50, the number of follicles decreases significantly, a situation that causes the lose of the ability of the ovary to cycle normally, so steroid levels decrease. The follicles have the function of containing the oocytes, a small number of these follicles is an insufficient number to maintain the cyclic hormonal process necessary for menstruation.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme