Meroblastic cleavage refers to one of the following types of division of eggs
Total
Partial
Spiral
Horizontal
Which one of the following statements is incorrect about menstruation?
The human embryo is about one inch in length after
$A$ : In human, ovum is alecithal type.
$R$ : It is almost free of yolk
Middle gastrula is characterised by
Which of the following groups of hormones are produced in women only during pregnancy?