autogamy

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autogamy
1. A type of reproduction that occurs in single isolated individuals of ciliate protozoans of the genus Paramecium. The nucleus divides into two genetically identical haploid nuclei, which then fuse to form a diploid zygote. The onset of autogamy is associated with changing environmental conditions and may be necessary to maintain cell vitality.

2. Self-fertilization in plants. See fertilization.

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