What is the function of DNA polymerase during replication?

Options

A. Make DNA from nucleotides
B. Splitting or separation of two stands of DNA
C. Renaturation
D. Denaturation

Answer

**Step-by-Step Solution:**

1. **Understanding DNA Replication**: DNA replication is the process by which a cell makes an identical copy of its DNA. This is crucial for cell division and the transmission of genetic information.

2. **Role of DNA Polymerase**: The primary function of DNA polymerase during replication is to synthesize new DNA strands. It does this by adding nucleotides to a growing DNA strand based on the template provided by the original DNA strand.

3. **Nucleotide Addition**: DNA polymerase catalyzes the formation of phosphodiester bonds between nucleotides. It requires a template strand and can only add nucleotides to the 3' end of an existing strand, which means it synthesizes DNA in a 5' to 3' direction.

4. **Formation of DNA Strands**: As DNA polymerase adds nucleotides, it helps to form a complementary strand to the original template strand. This is essential for creating two identical DNA molecules from one original molecule.

5. **Conclusion**: Therefore, the main function of DNA polymerase during replication is to synthesize new DNA strands from nucleotides, ensuring that the genetic information is accurately copied and passed on to daughter cells.

**Final Answer**: The function of DNA polymerase during replication is to synthesize new DNA strands from nucleotides.

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