Polygenesis can refer to:
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Polygenesis (linguistics), a theory of language origin
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Polygenism, a theory of human origin
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Gene duplication
Gene duplication (or chromosomal duplication or gene amplification) is a major mechanism through which new genetic material is generated during molecular evolution. It can be defined as any duplication of a region of DNA that contains a gene. ...
, a form of genetic disorder resulting in the overexpression of a particular gene Gourav
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Polygenetic landforms, landforms formed the accumulative action of various processes
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