How many cleavages are completed in $16$ celled stage of egg.
$3$
$4$
$8$
$12$
Normally the gametes are disease free in human beings or even in other animals because
First polar body is produced during the formation of
The capsule enclosing testis of mammal is called as
In sperm bank the sperms are stored in test tubes for the purpose of artificial insemination
The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is