Germ cells in mammalian gonads are produced by
Only mitosis
Only meiosis
Mitosis and meiosis both
Without cell division
The figure given below shows the sectional view of ovary. Select the option which gives correct identification of marked structure ( $A$ to $D$ ) and its feature.
Number of chromosomes in secondary oocyte stage in human is
Oogenesis comprises
In mature oocytes cortical granules are formed on which side of plasmalemma
How many spermatozoa are formed from one secondary spermatocyte ?