Advancing Epigenetics Towards Systems Biology

Natural variation

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Term Definition
Natural variation
Similar to genetic variation it refers to the variation in the genetic and epigenetic material of a population or species, and includes the nuclear, mitochodrial, ribosomal genomes as well as the genomes of other organelles. New genetic variation is caused by epigenetic or genetic mutation. It may end up in take the form of recombination, migration and/or alterations in the karyotype (the number, shape, size and internal arrangement of the chromosomes). Genetic drift is a statistical measure of the rate of genetic variation in a population.
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