$A$ : $LH$ acts on Sertoli cells for release of certain factors required for spermatogenesis.
$R$ : Spermiation occurs directly under influence of $LH$
Assertion and Reason both are correct and also correct explantion.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
In human females, meiosis-$II$ is not completed until
In mammals growing oocytes are surrounded by special nutritive cells called
A single ejaculation contains $...A...$ to$...B..$. million spermatozoa. Semen has pH of $...C...$ to $...D....$ Its alkalinity helps to neutralize the acidity of urethra. Here $A,B, C$ and $D$ refers to
The process by which ova are formed is knwon as
Draw a labeled diagram of a Graafian Follicle?