Board may also be used as a ï¬oor protector in. place of one layer of 3/8 thick millboard. For hearth extensions, see Speciï¬cation 3.6B. DUROCKÂ® Brand In addition to standard 1/2 DUROCK Brand Cement Board, DUROCKÂ® Brand Underlayment is available for ï¬oors and.
Genetic Blueprints. To map the chimp genome, researchers used DNA from the blood of a male common chimpanzee (Pan troglodytes) named Clint, who lived at the Yerkes National Primate Research Center in Atlanta. Clint died last year from heart failure at the relatively young age of 24. A comparison of Clint's genetic blueprints with that of the human genome shows that our closest living relatives share 96 percent of our DNA.
The bonobo (Pan paniscus), which is the close cousin of chimpanzees (Pan troglodytes), differs from humans to the same degree. The DNA difference with gorillas, another of the African apes, is about 1.6%.NA shapes how an organism grows up and the physiology of its blood, bone, and brains. DNA is thus especially important in the study of evolution. The amount of difference in DNA is a test of the difference between one species and another â and thus how closely or distantly related they are.