English: Diagram for en:Evolution of sex. Created in Corel Draw by Michael Reeve, 17 May 2004.
Sex helps the spread of advantageous traits through recombination. The diagrams compare evolution of allele frequency in a sexual population (a) and an asexual population (b). The vertical axis shows frequency and the horizontal axis shows time. The alleles a/A and b/B occur at random. The advantageous combination AB arises rapidly with recombination (a), but must arise independently in (b).
{{Information |Description=Diagram for en:Evolution of sex. Created in Corel Draw by Michael Reeve, 17 May 2004. |Source=Originally from [http://en.wikipedia.org en.wikipedia]; description page is/was [http://en.wikipedia.org/w/index.php?title=Image%