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alternation of generations
(redirected from Alternation of generation)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
alternation /al·ter·na·tion/ (awl″ter-na´shun) the regular succession of two opposing or different events in turn.
alternation of generations  metagenesis.
alternation of the heart  mechanical alternans; alternating variation in the intensity of the heartbeat or pulse over successive cardiac cycles of regular rhythm.

alternation of generations
n.
The regular alternation of forms or of mode of reproduction in the life cycle of an organism, such as between diploid and haploid phases, or between sexual and asexual reproductive cycles. Also called metagenesis, xenogenesis.

alternation of generations.
alternation [awl″ter-na´shun]
interrupted occurrence, being interspersed with different or opposite events.
alternation of generations metagenesis.


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