Depurination is basically the removal of the attachment of a purine base with its pentose sugar. The damage caused by this process is usually prevented by the repair of proof-reading polymerases. But if ever it still has not been repaired prior to replication, this apurinic site is replaced by a random base.
If a G position becomes depurinated, during the next DNA replication, that position will probably be filled with _____, if the damage is not repaired.
D. Nothing and cause a deletion
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