In oogamy,fertilization involves:
- A$A$ small non-motile female gamete and a large motile male gamete.
- B$A$ large non-motile female gamete and a small motile male gamete.
- C$A$ large non-motile female gamete and a small non-motile male gamete.
- D$A$ large motile female gamete and a small non-motile male gamete.
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