It’s often said that we share 99% of our genes with chimpanzees.
So I would extrapolate from this that the physical traits that make individual humans unique, like height, hair color and texture, eye color, facial features, skin color etc. are all variations within the remaining 1% of our genes, since these are all human traits which are dissimilar to chimpanzee traits (i.e. a human face looks nothing like a chimpanzee’s face)
And DNA evidence can now be used to conclusively (or very close) match biological evidence with the person who left it behind. Are these matches also based on that 1% of our DNA we’re talking about? Is the technology really that precise?
I have a related question about the fact that we get 50% of our genes from each parent, but I don’t know how to articulate it yet. Maybe some of the responses to this OP will educate me enough to form a proper question.