{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Week 4 Notes

with sex it can be obtained via recombinaon of ab and

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: eproduc;on •  New combina;ons of alleles •  Sex can produce new genotypes •  Produces varia;on with each new allele combina;on •  Clearance of deleterious muta;ons Recombina;on •  Speed rate of adap;ve evolu;on by producing novel allele combina;ons •  Suppose AB is advantageous... –  With sex, it can be obtained via recombina;on of Ab and aB lineages –  Without sex, two muta;ons are required •  Asexual genomes are slow to adapt... 4 1/27/14 The Idea of Muller’s Ratchet Advantage of recombina;on •  However, let’s suppose existing lineages carry: •  Ab and aB where upper case alleles (A and B) are deleterious. •  With sex we can purge deleterious mutations: Recombination can create ab and AB, and selection can remove AB and keep ab. •  Without sex, no way to remove A and B simultaneously. In fact, new mutations will only make population...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online