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No, unique genetic differences such as, bone structure, hair texture and color, eyes, etc. related to ancestral begginings and the source of these differences. There were technically even different species of humans at one time according to science, this may affect race, but location seems to be a prominent factor. I don't know all the technical details, but no, there is more than just the color of the skin to determine race scientifically. If I remeber correctly.
"The Greatest Enemy of Knowledge is Not Ignorance, It is the ILLUSION of Knowledge. Stephen Hawking"
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