The human body contains about 100 trillion ... the sequence of these four letters, or bases, is nearly identical. Although the DNA code from cell to cell is the same, there are many different ...

Human DNA is 98 percent identical to chimpanzee DNA ... which is 0.2 percent, or one in 500 letters. (This takes into account that human cells, unlike chimpanzee cells, have two copies of the ...

Gene variant - A difference in the sequence of DNA "letters" that make up a gene. Modern humans inherited certain gene variants from Neanderthals. Neanderthal pictures ...

AFP HO Scientists based at The University of Manchester have conducted an ethical analysis of the medical use of artificial human DNA. The medical use of synthetic DNA challenges traditional ...