Alternatives to meiosis: the unusual genetics of red algae, microsporidia, and others.

Abstract excerpt

At a reductional division, the two alleles at a heterozygous locus segregate into different daughter nuclei. Reductional divisions are therefore vulnerable to genetic elements that cause one cell to attack its sister. This danger can be circumvented by creating uncertainty about when reduction occurs. In conventional meiosis, this is achieved by a sequence of two divisions with crossing over. Either the first or...

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