How many mutations are humans away from chimpanzees?

It might take more than mutation. Human's have one chromosome (#2) where apes have two. At some point they merged, so a return to apehood would like need a split. Plus pieces of chromosones get shifted or moved from chromosome to chromosone, or duplicated, or lost, or reversed... read more

A database now exists containing the genetic differences between human and chimpanzee genes, with about thirty-five million single-nucleotide changes, five million insertion/deletion events, and various chromosomal rearrangements. read more

Human mutations occur all the time, on the order of 100–200 germ line (heritable) mutations per generation that are expressed in genes (eg not just changes in non-coding DNA) If you mean mutations in the horror movie sense, like growing two heads or something dramatic and visible, that’s not something that happens in one generation, or even a hundred. read more

The chimpanzee is the closest animal relative to humans. Credit: Anne Fischer, Max Plank-Institute for Evolutionary Anthropology A new study of genes in humans and chimpanzees pins down with greater accuracy when the two species split from one. read more