Dictionary of Human Evolution and Biology

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New Epigenetics

Study of the causes of development, timing, and interaction of gene expression and staged tissue induction, the processes that reprogram or reverse those causes between generations during or after meiosis (i.e. nuclear inheritance that is not based on DNA sequence differences), and the mitotic inheritance of given patterns of gene expression. Examples are X inactivation, centromere inactivation, position effect varigation, DNA methylation, and genomic imprinting.

Cf. epigenetics.

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