The asexual ploidy cycle and the origin of sex.

doi:10.1038/370213a0

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Article

The asexual ploidy cycle and the origin of sex.

Nature - 21 Jul 1994

Kondrashov A S

Abstract excerpt

Sex involves syngamy (gamete fusion), which doubles the amount of DNA in a cell, and meiosis, which halves it. The result is a 'ploidy cycle' of alternating diploid and haploid phases. Asexual reproduction does not require changes of ploidy, and yet asexual forms may have ploidy cycles. Here I sh...

Topics

Animals
Biological Evolution
Models, Biological
Mutation
Ploidies
Sex

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