In base-excision repair,the first enzyme in the sequence is DNA glycosylase.Which of the following types of sites does the enzyme create?

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DNA glycosylase creates apurinic or apyrimidinic sites by recognizing and removing damaged or mismatched bases. These sites are then repaired by subsequent enzymes in the base-excision repair pathway, including AP endonuclease and DNA polymerase. Ligase binds to nicked DNA strands to seal the repaired site, but it is not created by the initial action of DNA glycosylase. DNA polymerase I and III are also involved in DNA replication and repair, but they are not specifically involved in base-excision repair.

In Base-Excision Repair,the First Enzyme in the Sequence Is DNA