jeans

quote from somewhere - Scientists from the Wayne State University, School of Medicine, Detroit, US, examined key genes in humans and several ape species and found our "life code" to be 99.4% the same as chimps.

Scientists decoding the human genome have discovered that just 78 genes separate men from women.


Humans are said to have between 20,000 and 25,000* genes. 78 genes out of 25,000 is in the neighbourhood of .4%. {revised as 78 out of 20,000 is close to .6%!}

So, while, superficially, that looks close, it's important to consider which genes are different. Y chromosomal and X chromosomal differences comprise the majority of difference between men and women I think.