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- Syngamy
- Conjugation
Syngamy
It is the complete and permanent fusion of 2 haploid gametes to form a diploid zygote.When the 2 fusing gametes are morphologically and physiologically similar to each other, the process is called isogamy.
Example: MonocystisWhen the 2 organisms themselves acts as gametes it is called hologamy.
Example: YeastConjugation
It is a temporary pairing of 2 parents to exchange male and female gametes, through a temporary cytoplasmic bridge.Example: Ciliate protozoans like paramoecium.