The undifferentiated primordial germ cells are larger in size and their chromatin rich nuclei are distinct in
Multiplication phase
Growth phase
Maturation phase
All the above
It's Obvious
During pregnancy which one of the following is excreted?
How does zona pellucida of ovum help in preventing polyspermy ?
What induces the completion of the meiotic division of the secondary oocyte?
The term blastocyst is applied to the blastula of which one of the following
The membrane investing the ovum just outside the membrana granulosa is
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