Answer: NUCLEASE, DNA POLYMERASE, DNA LIGASE
Explanation: Hypoxanthine is a naturally occurring derivative of PURINE,it has also been known to exist in the intermediate disintegration of ADENOSINE MONO PHOSPHATE,it is first converted to Xanthine through the action of an enzyme called Xanthine oxidase. It can be replaced or repaired by the activities of these three enzymes NUCLEASE and DNA LIGASE and DNA POLYMERASE,which facilitates the synthesizing of DNA.
