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Since prehistory, human populations have gone through periods of isolation and intermixing which lead to differences between groups. [[Scientists]] believe that these are largely a matter of different statistical frequencies of variations from an agreed-on standard, rather than racial differences as was once thought. Modern [[Homo sapiens|humans]] share approximately 99.9% of their [[DNA]]. Of the .1% that does vary, 85% of the observed variation is unconnected to membership of any particular group of people.
Since prehistory, human populations have gone through periods of isolation and intermixing which lead to differences between groups. [[Scientists]] believe that these are largely a matter of different statistical frequencies of variations from an agreed-on standard, rather than racial differences as was once thought. Modern [[Homo sapiens|humans]] share approximately 99.9% of their [[DNA]]. Of the .1% that does vary, 85% of the observed variation is unconnected to membership of any particular group of people.
==Modern Definitions==
===Biologic===
Modern biology acknowledges phenotypic and genotypic differences between groups of people. These differences may be obvious, like skin color, or non-obvious, like a difference in allele frequency. None of these differences ''within'' the species are as significant as differences ''between'' species.
===Sociologic===
Race is also viewed as a socio-political construct, used conveniently to justify certain political policies.
===Religious===
Religions have taken different views on race that have generally paralleled those of society as a whole. Religion has been used to justify racism, and to help eradicate it.