Question

What is the difference of human dna and animal dna?

Answer 1

Answer:

Another way to look at it is to go back into the past. The study of DNA and the way it changes over time has allowed us to look back into the past and to determine how different species are related to one another. If we do this for ourselves - humans - we find that traveling back about six-seven million years takes us to a common ancestor with our closest living relative, the chimpanzees. We do not know what the common ancestor looked like, as there are no fossils to guide us. However, most likely it was a forest dwelling creature more chimp-like than human-like. What we do know is that there is lots of evidence from fossils - preserved bones - of early relatives of humans, going right back to about 4 million years ago. These are mainly found in the dry parts of Ethiopia (Tanzania - where I live, Ethiopia and Kenya), where fossil material has preserved very well. As John has very nicely explained, these gradual physical changes have resulted from changes in the DNA that led to selective advantages for the early humans that inherited them. Changing environment is a key factor in influencing this process, as John highlighted.

Answer 2

Answer:

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Far from special: Humanity's tiny DNA differences are 'average' in animal kingdom. ... The typical difference within a species, including humans, is 0.1% or 1 in 1,000 of the "letters" that make up a DNA sequence