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Unformatted text preview: b) The Contagion Hypothesis sex arose as a secondary consequence of the infection of eukaryotes by mobile genetic elements, such as viruses. c) The Red Queen Hypothesis An evolutionary advantage of sex is that is allows populations to store recessive alleles which are currently bad but which may have value sometime in the future. Natural selection works against bad genes, but they can be sheltered in heterozygotes . d) Millers Ratchet It was noted by Miller that there are limited mechanisms in asexually reproducing organisms to eliminate harmful mutations in genes. Sexual populations can employ recombination to generate individuals carrying fewer mutations. 4. Would you want to be able to choose the sex of your next child? a) Yes b) No...
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- Summer '08