PHYSICA

Class 12 Zoology simulations · Human Reproduction

Spermatogenesis vs oogenesis

Compare how many gametes form from one primary spermatocyte and one primary oocyte.

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What to notice

Meiosis halves the chromosome number from 46 to 23; in oogenesis unequal division conserves cytoplasm in the ovum.

Key relation

Primary spermatocyte → 4 sperms ; primary oocyte → 1 ovum + polar bodies

Try this

Switch to oogenesis. Where does the second meiotic division finish?

What you can change

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