Question

what enzyme is used to copy a piece of dna? a dna polymerase b rna polymerase c dna helicase

Explanation:

• DNA polymerase: It is responsible for synthesizing new DNA strands by adding nucleotides to the growing DNA chain during DNA replication, which is the process of copying DNA.
• RNA polymerase: This enzyme is involved in transcription, where it synthesizes RNA from a DNA template, not in copying DNA.
• DNA helicase: Its function is to unwind the double - stranded DNA by breaking the hydrogen bonds between the base pairs, but it does not copy the DNA.

Answer:

A. DNA polymerase