http://www.pnas.org/content/early/2012/06/19/1201894109.abstract?etoc
One of the main tubs I kept on thumping in NAC was that the human genome and the chimpanzee genome are not as closely related as most commentators would like us to believe - that the so-called 1.6% difference is a myth. In this PNAS paper, Todd Preuss, whose research is mentioned extensively in my text, expands on precisely that point as well as examining the difficulty extrapolating from genotype to phenotype. As he puts it: "Our knowledge of the genes that underwent expression changes or were targets of positive selection in human evolution is rapidly increasing, as is our knowledge of gene duplications, translocations, and deletions. It is now clear that the genetic differences between humans and chimpanzees are far more extensive than previously thought; their genomes are not 98% or 99% identical."