Final answer:
DNA proofreading is a mechanism used by DNA polymerase during replication to minimize errors and mutations in the DNA sequence.
Step-by-step explanation:
DNA proofreading is a mechanism used by DNA polymerase during replication to minimize errors and mutations in the DNA sequence. During proofreading, the DNA polymerase reads the newly added base and checks if it is complementary to the template strand before adding the next base. If an incorrect base is detected, the polymerase cuts it out and replaces it with the correct base.