explaination about the same racial stock?
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The concept of race as a rough division of anatomically modern humans (Homo sapiens) has a long and complicated history. The word race itself is modern and was used in the sense of "nation, ethnic group" during the 16th to 19th centuries and acquired its modern meaning in the field of physical anthropology only from the mid-19th century. With the rise of modern genetics, the concept of distinct human races in a biological sense has become obsolete. In 2019, the American Association of Physical Anthropologists stated: "The belief in 'races' as natural aspects of human biology, and the structures of inequality (racism) that emerge from such beliefs, are among the most damaging elements in the human experience both today and in the past.
Answer:
In biological taxonomy, race is an informal rank in the taxonomic hierarchy, below the level of subspecies. It has been used as a higher rank than strain, with several strains making up one race.[1][2] Various definitions exist. Races may be genetically distinct populations of individuals within the same species,[3] or they may be defined in other ways, e.g. geographically, or physiologically.[4] Genetic isolation between races is not complete, but genetic differences may have accumulated that are not (yet) sufficient to separate species.[5] The term is recognized by some, but not governed by any of the formal codes of biological nomenclature.
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