Arrange in correct sequence the structures formed during spermatogenesis
$(a)$ Spermatogonia
$(b)$ Secondary spermatocyte
$(c)$ Primary spermatocyte
$(d)$ Spermatid
$c-d-b-a$
$a -b-c-d$
$a -c-b-d$
$c-a-d-b$
The secondary spermatocytes undergo the second meiotic division to produce four equal,
Which type of cell division forms spermatids from the secondary spermatocytes ?
Which of the following cells during gametogenesis is normally diploid ?
The process by which ova are formed is knwon as
The figure shows a section of human ovary. Select the option which gives the correct identification of either $A$ or $B$ with function/ characteristic.