Testicular degeneration and other disorders of reproductive system in mammals are due to the deficiency of
Vitamin $A$
Vitamin $B$
Vitamin $K$
Vitamin $E$
Stroma is a term applied to
$FSH$ and $LH$ is
The membrane investing the ovum just outside the membrana granulosa is
Two major entities seen in human testis $\mathrm{TS}$ are
From where spermatogenesis starts ?