Fertilization occurs in human, rabbit and other placental mammals in
Ovary
Uterus
Fallopian tubes
Vagina
Fraternal twins in man are produced when
Which distinguishes a morula from a blastula
The solid mass of cells formed at the end of cleavage of mammalian egg is
Pregnancy begins with implantation of
In indeterminate cleavage the fate of blastomeres is fixed at which of the following stage