Question

how does dna polymerase prevent mutations?
a. it checks amino acids during protein synthesis.
b. it creates extra copies of each dna strand.
c. it uses translation and transcription.
d. it checks dna for errors during replication.

Explanation:

DNA polymerase is involved in DNA replication. During this process, it proof - reads the DNA strands for errors such as incorrect base - pairings. Option A is about protein synthesis which is not the main function of DNA polymerase in preventing mutations. Option B creating extra copies doesn't prevent mutations. Option C, translation and transcription are different processes from the proof - reading function of DNA polymerase in mutation prevention.

Answer:

D. It checks DNA for errors during replication.