2 Roy Britten, author of the study, puts the figure at about 95 when insertions and deletions are included. Work with a partner or in a small group Each team of two or more will. A new report in the Proceedings of the National Academy of Sciences suggests that the common value of >98 similarity of DNA between chimp and humans is incorrect. Create a set of human and chimp attribute cards based on what you find. In mitochondrial DNA, which changes considerably faster, geneticists found a difference in 8.8 between humans and chimpanzees, 10.3 between humans and gorillas, 10.6 between chimpanzees and gorillas and 16-17 difference between the other species and the orang-utan. But just how similarand differentare we Take a close look and compare a chimp and a human side by side. For example, comparing the 33 percent of our genome that codes for proteins with our relatives' genomes reveals that although the sum total of our genetic differences is small, the individual differences pervade the genome, affecting each of our chromosomes in numerous ways. humans People have long been fascinated by how similar chimpanzees look to humans. But they can conduct whole-genome analyses-with intriguing results. Scientists do not yet know how most of the DNA that is uniquely ours affects gene function. Yet that tiny portion of unshared DNA makes a world of difference: it gives us, for instance, our bipedal stance and the ability to plan missions to Mars. The recent sequencing of the gorilla, chimpanzee and bonobo genomes confirms that supposition and provides a clearer view of how we are connected: chimps and bonobos in particular take pride of place as our nearest living relatives, sharing approximately 99 percent of our DNA, with gorillas trailing at 98 percent. scientists have sought out differences between humans and chimpanzees, whose genes are about 98 similar to ours. In 1871 Charles Darwin surmised that humans were evolutionarily closer to the African apes than to any other species alive. Human intelligence is one of evolution’s most consequential inventions.
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