Ovulation takes place in a month between
$11\; days$
$14\;days$
$15-28\; days$
$21-26\; days$
Middle gastrula is characterised by
Ejaculation of semen
Cleavage was first observed by
Which part of ovary in mammals acts as an endocrine gland after ovulation?
$A$ : Fertilin protein is present in the egg membrane.
$R$ : It helps in agglutination reaction