If race were an arbitrary, socially-constructed concept, devoid of all biological meaning, such consistent relationships would not exist.
A race is what zoologists term a variety or subdivision of a species.
Those objecting to the concept of race argue that the taxonomic definitions are arbitrary and subjective.
To deny the predictive validity of race at this level is nonscientific and unrealistic.
Sometimes it is claimed by those who argue that race is just a social construct that the human genome project shows that because people share roughly 99% of their genes in common, that there are no races. This is silly.
Formation of a new race takes place when, over several generations, individuals in one group reproduce more frequently among themselves than they do with individuals in other groups.
Deconstructing the concept of race not only conflicts with people's tendency to classify and build family histories according to common descent but also ignores the work of biologists studying non-human species.
Race differences show up early in life.
Nonetheless, much has been learned by studying the statistical differences between the various human races.
Each race (or variety) is characterized by a more or less distinct combination of inherited morphological, behavioral, physiological traits.