If race were proved to be not based in biology, that it was merely a social construct, wouldn't this statement require an extensive study of gene frequencies in nuclear DNA? For example, let us say that blacks in America truly have a genetic advantage in sports such as basketball and football, to refute or substantiate this claim there would need to be a study of large populations measuring athletic ability (as a series of genes) and mapping the frequencies across already established racial lines. Is this true?