Re: Genetic material

DNA-DNA hybridization studies lead us to believe that about 98.9 percent 

of the chimpanzee and human genomes are identical in nucleotide composition.

I found this in Evolutionary Biology by Doug Futuyma (p. 510) and his reference

was a 1975 article by M. C. King and Allan Wilson from the journal Science,

vol 188, pages 107-116. Futuyma didin't say, but I am assuming this is Pan 

troglodytes, the common chimpanzee, and not Pan paniscus, the bonobo. Some 

recent work (I don't have a reference, it may have actually been an episode

of Nature on PBS) has suggested that H. sapiens may actually be more closely

related to P. paniscus rather than P. troglodytes, so the figure quoted above

may or may not be accurate, but it's probably close enough for most purposes.