1. Explain how recombination facilitates adaptive evolution. In your answer, address both how it facilitates the fixation of adaptive alleles, and how it allows continued long term adaptive change. What evidence suggests that species that never do recombination tend to go extinct at a higher rate than those that do recombination at least occasionally.

By changing allelic association recombination can aid solution, either helping to bring two beneficial alleles from an otherwise well adopted genome. He natural selection only acts on the population heritable traits selecting for the beneficial alleles and thus increasing their frequency in the population, while selecting against deleterious alleles and thereby decreasing their frequency as the process known as adaptive evolution    

a

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