It’s claimed that we share 96-99% of our DNA with Chimps and that we share a common ancestor with the great apes. But do we really? Here are some important facts to consider…………….
All biotic (living) organisms have genetic info encoded in DNA divided into units we call “genes.” Info is transferred from these genes by a chemical known as RNA. Some RNA is translated into chains of amino acid that make up proteins which are the building blocks of every biotic cell.
Chris Moran, University of Sydney, Veterinary Sciences, Professor of Animal Genetics: “Making broad comparisons by saying….98% of human genes are similar to chimpanzees or whatever else….tend to be a little bit misleading…..Mammals have most of the SAME GENES for similar biochemical and physiological functions. If you look at the details of the genes there’ll be differences between them, but they’ll still be doing the same kind of function.”
The amount of genetic material we share with other species depends upon what we compare! If we compare the protein-encoding portion of our DNA we have much in common with many other mammals. Only 1-2% of our DNA actually encodes proteins. Most of the rest is transcribed into RNA. When humans and chimps (two closely related species) are compared we can see similarity between rapidly changing DNA sequences. If we compare humans and pigs we see many differences in their DNA and changes in DNA have been so rapid in the two that you can no longer really tell the sequences were ever similar.
Blanket comparisons of all DNA sequences between species are NOT very meaningful. One area where comparison of genome sequences isn’t at all that relevant is the emerging science of transplanting organs an tissues from pigs to humans.
Humans are most closely genetically related to the great apes which includes orangutans, chimps, gorillas, and bonobos. However, we share the greatest amount of DNA with Bonobos (98.8%) who are very sexual chimps and chimpanzees. Humans and gorillas share 98.4% DNA. Humans and Orangutans share 96.9% DNA. Humans and monkeys share 93% DNA.
Humans and mice share almost 90% DNA. This is one reason mice are used in human health related experiments because the assumption is that reactions experienced by mice will also be seen in humans during clinical trials.
Humans and dogs share 84% DNA. Humans and birds share 65% DNA which is interesting because birds are not mammals. Humans share 90% of our DNA with cats.
According to Dr Gene McCarthy who studies Genetics (see website link below) humans evolved NOT from apes but from PIGS! So is the claim of his “Stabilization Theory” which he says is an alternative to conventional Evolutionary Theory. We share about 83% of our DNA with pigs.
Mammals share a large amount of DNA but this does NOT mean we evolved from this or that mammal. According to modern evolutionary theory humans share a common ancestor with the great apes BUT this does NOT mean humans evolved from apes!!
Stabilization Theory: http://www.macroevolution.net/table-of-contents.html