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Epigenetics

nucleosomes

Epigenetics describes modifications to the genome that can be passed on to future cells.These changes do not alter the nucleotide sequence of the DNA-the As, Gs, Ts, and Cs that make up our genes. Rather, they modify the “backbone” that supports the DNA sequence. These modifications influence when and how often a gene is active. Credit: Darryl Leja, NHGR


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