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Professor David Polley's favorite adaptation got the party off to a good
start. His favorite adaptation: Sex. "Sex, defined as the combination of
two genomes in one cell, requires cell fusion and subsequently chromosome
reduction through meiosis," Professor Polley explained with a reasonably
straight face. "In early eukaryotes, which were unicellular, there likely
was an advantage to combine resources during periods of starvation by cell
fusion. Thus sex may have originated as an adaptation to stress."
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