Which enzyme is primarily responsible for adding new nucleotides to a growing DNA strand during DNA replication, as described in the Amoeba Sisters video recap on DNA replication?

• A. Ligase
• B. Primase
• C. DNA polymerase
• D. Helicase

Answer: (C)

Verified step by step guidance

1. Understand the process of DNA replication: DNA replication is the process by which a cell duplicates its DNA before cell division. It involves several enzymes working together to ensure accurate copying of the genetic material.
2. Identify the role of each enzyme mentioned: Helicase unwinds the DNA double helix, primase synthesizes a short RNA primer to provide a starting point, DNA polymerase adds new nucleotides to the growing DNA strand, and ligase seals gaps between DNA fragments.
3. Focus on the enzyme responsible for adding nucleotides: DNA polymerase is the enzyme that synthesizes the new DNA strand by adding complementary nucleotides to the template strand.
4. Recall the Amoeba Sisters video recap: The video emphasizes the role of DNA polymerase in elongating the DNA strand during replication, highlighting its importance in ensuring the accuracy of the process.
5. Conclude the answer: Based on the information provided and the roles of the enzymes, DNA polymerase is the correct enzyme responsible for adding new nucleotides to the growing DNA strand during DNA replication.