Nokea
What enzyme is used to catalyze the elongation of the DNA strand during replication?
Correct Answer: A
Rationale: Correct Answer: A: DNA polymerase
Rationale:
1. DNA polymerase is responsible for adding nucleotides to the growing DNA strand during replication.
2. It catalyzes the formation of phosphodiester bonds between incoming nucleotides.
3. DNA polymerase also possesses proofreading abilities to ensure accuracy.
4. Primase is responsible for synthesizing RNA primers, not elongating the DNA strand.
5. DNA ligase joins Okazaki fragments and seals nicks in the DNA backbone.
6. Helicase unwinds the DNA double helix during replication, not involved in elongation.