The primordial germ cells make their appearance from wall of
Amnion
Chorion
Allantois
Gonad
It's Obvious
The seminal fluid coagulates on ejaculation due to
At which phase, both $LH$ and $FSH$ attain a peak level?
Immediately after implantation, ectoderm, endoderm and the mesoderm of embryo is formed from
In $28$ day human menstrual cycle, ovulation occurs on
From which embryonic structure develops the vertebral column
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