Assertion (A) is false because FSH acts on ovarian follicles in females and Sertoli cells in males, not Leydig cells.
Reason (R) is true because growing ovarian follicles secrete estrogen, and interstitial cells (Leydig cells) secrete androgens in males.
Thus, the correct answer is (4) A is false, but R is true.

A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :
The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
What is Microalbuminuria ?

In the above represented plasmid an alien piece of DNA is inserted at the EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies?