The foetal membrane which is the source of first blood corpuscle to enter the circulation of the embryo is called
Amnion
Chorion
Trophoblast
Yolk sac
It's Obvious
In teleosts, reptiles and birds the cleavage pattern is
In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was
$A$ : If both the ovaries are removed after the first trimester of pregnancy, still there would be normal growth of foetus. $R$ : After first trimester placenta secretes sufficient progesterone
Testes in rabbit are
Neural crest cells break off from the ________ and later move to the sides of the developing embryo to form ________
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