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cytosine guanine earrings silver Chain_Upsell This methylation demethylation cycle at cytosines Length:17 cm This methylation demethylation cycle at cytosines within CpG dinucleotides is how cells regulate gene expression across development or who finds the earring scale easier than a chest pendant for working clinical and lab use Wearing one base on each ear references the way the two strands of DNA come together: each base on one strand is hydrogen bonded to its complement on the other The combination of structural strength and chemical modifiability is what makes the G C pair carry both the physical scaffold of the genome and a layer of regulatory information on top
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