Action of which of the following hormones is blocked during use of $RU\; 486$ (mifepristone)?
$FSH$
$LH$
Progesterone
$hCG$
Lactational amenorrhoea, is a natural way of birth spacing. It is due to the high level of
Sex ratio in a species indicates the numerical relation between the number of
Norplant’ is the new form of birth control and it
Closely related, morphologically similar sympatric populations, but reproductively isolated, are designated as