lecture04

lecture04 - as a sort of molecular clock to determine...

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

View Full Document Right Arrow Icon
2/7/12 lecture04.html 1/1 C:/Users/JIMMIN~1/AppData/Local/Temp/Rar$EX04.857/«/lecture04.html EEB 122: Principles of Evolution, Ecolog\ and Behavior Lecture 4 - Neutral Evolution: Genetic Drift << previous session _ next session >> OYeUYieZ: Neutral evolution occurs when genes do not experience natural selection because they have no effect on reproductive success. Neutrality arises when mutations in an organism's genotype cause no change in its phenotype, or when changes in the genotype bring about changes in the phenotype that do not affect reproductive success. Because neutral genes do not change in any particular direction over time and simply "drift," thanks in part to the randomness of meiosis, they can be used
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: as a sort of molecular clock to determine common ancestors or places in the phylogenetic tree of life. Reading aVVignmenW: Stearns, Stephen C. and Rolf Hoekstra. EYolXWion: An InWrodXcWion , chapter 3 ClaVV lecWXUe: Yale University 2009. Some rights reserved. Unless otherwise indicated on this page or on the Open Yale Courses website, all content on this page is licensed under a Creative Commons License (Attribution-NonCommercial-ShareAlike 3.0)...
View Full Document

This note was uploaded on 02/07/2012 for the course EEB 122 taught by Professor Stephenstearns during the Spring '09 term at Yale.

Ask a homework question - tutors are online