Epigenetics

Epigenetics is the study of heritable changes in gene expression (active versus inactive genes) that do not involve changes to the underlying DNA sequence — a change in phenotype without a change in genotype — which in turn affects how cells read the genes. These heritable changes determine how an individual adapts to his/her environment, but can also be influenced by environment and modified by therapy.

Genetics, on the other hand, deals with the heritable changes that involve changes to the underlying DNA sequence – and are irreversible. Changes to DNA are the mutations that cause evolution.

Autorin: Franziska Badenschier

http://www.planet-wissen.de/natur/forschung/epigenetik/

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