Biology, 11.04.2020 02:45 ameliaduxha7

We call a depurination when the covalent bond between the deoxyribose and an adenine, or guanine, breaks without damaging the DNA backbone of phosphate and deoxyribose.
a) deamination - cytosine to uracil
b) pyrimidine dimers - double bonds on adjacent bases form a ring coupling them together
c) alkylation - guanine to methyl-guanine
d) depurination - creating an apurinic site

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We call a depurination when the covalent bond between the deoxyribose and an adenine, or guanine, br...