write difference between spermatogenesis and oogenesis or draw labelled diagram of sperm and ovum
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Spermatogenesis
- Polar bodies are not formed
- Polar bodies are not formed There is an equal division.
- Polar bodies are not formed There is an equal division.There is no yolk in sperms.
- Polar bodies are not formed There is an equal division.There is no yolk in sperms. A large number of sperm are found by this process.
Oogenesis
- Polar bodies are formed.
- There is unequal division.
- There is unequal division.Eggs contain yolk.
- There is unequal division.Eggs contain yolk.Fewer numbers of ovum are formed by this process.
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