May 27, 2004 Chimps are not like humans Whole-chromosome comparison reveals much greater genetic differences than expected | By Cathy Holding The vigorous debate on how different chimpanzees are from humans is fuelled by new data in this week's Nature, as the International Chimpanzee Chromosome 22 Consortium reports that 83% of chimpanzee chromosome 22 proteins are different from their human counterparts.The difference is "much more complicated that we initially imagined or speculated," Yoshiyuki Sakaki, who headed the consortium, told The Scientist. "Our group completed the human chromosome 21 sequence about 3 years ago," Sakaki, director of the RIKEN Genomic Sciences Center,...