Androgen stimulates the $...A...$ FSH acts on the $...B...$ and stimulates factors for spermiogenesis. Here $A$ and $B$ refers to
$A-Sertoli\; cell\;; B-Leydig\; cell$
$A-Spermatogenesis\;; B-Spermatid$
$A-Spermatogenesis\;; B-Sertoli cell$
$A- Spermatogenesis\;; B-Leydig cell$
$A$ -Spermatids formed from secondary spermatocytes.
$R$ -The spermatids are transformed into spermatozoa by the process called spermiogenesis.
Insemination is
The secondary spermatocytes undergo the second meiotic division to produce four equal,
A cross section at the midpoint of the middle piece of a human sperm will show
Which of the following cells during gametogenesis is normally diploid ?