In humans, what is the ratio of the number of gametes produced from one male primary sex cell to the number of gametes produced from one female primary sex cell ?
$1:3$
$1:4$
$3:1$
$4:1$
Fluid filled cavity called $...A...$ is developed in $...B...$ follicle called $...C....$ Here $A, B$ and $\mathrm{C}$ are
Accessory glands of human male reproductive system are
The number of foetal membranes in man is
By the contraction of spermatic cord the testis of man are not taken to the abdominal cavity. It is due to the following structure
Home use kits for determining a women's fertile period depend on the detection of one hormone in the urine. This hormone is