Bio 201 S14 Class 5 2 5 14 v2

Bio 201 S14 Class 5 2 5 14 v2

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Unformatted text preview: 16 The good and bad of sex and recombina1on •  Recombina1on generates huge amounts of varia1on in popula1ons •  Recombina1on allows advantageous alleles at different loci to be combined –  BUT also breaks them up •  Recombina1on allows deleterious muta1ons to be efficiently purged from popula1ons •  Since females produce offspring; a sexual popula1on will have half the reproduc1ve rate of an asexual popula1on of all females SLIDE 17 Popula1on thinking: recombina1on Popula1on without recombina1on (ASEXUAL) Popula1on with recombina1on (SEXUAL) X X X X X X X Muta1ons occur and accumulate (reversal of individual muta1ons is very very very rare) X SLIDE 18 Popula1on Popula1on thinking: recombina1on Popula1on without recombina1on (ASEXUAL) Popula1on with recombina1on (SEXUAL) X X X Selec1on...
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This document was uploaded on 04/03/2014 for the course BIO 201 at SUNY Stony Brook.

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