DNA Pairing Rules in Repair

DNA pairing rules help guide DNA repair. In DNA, bases pair in a specific way, and those matching pairs support accurate copying and fixing of the molecule.

When DNA is damaged or copied incorrectly, repair systems can use the normal base-pairing pattern as a reference. This helps cells find mism...

DNA resembles a twisted ladder. And the rungs of the DNA ladder are complementary pairs of nitrogenous bases. According to base pairing rules, adenine, a purine, pairs with thymine, a pyrimidine, with two hydrogen bonds. And guanine, a purine, appears with cytosine, a pyrimidine, with three hydrogen bonds. But why do purines always pair with pyr...