Question

Mitochondrial DNA replication is carried out by:

• A. DNA polymerase gamma
• B. DNA polymerase I
• C. Pfu DNA polymerase
• D. DNA polymerase alpha

Hint:

DNA polymerase gamma specifically replicates mitochondrial DNA.

Answer 1

The Correct Option is A

Step 1: Understanding Mitochondrial DNA Replication 
Mitochondrial DNA replication is distinct from nuclear DNA replication and is carried out by specialized enzymes. 
Step 2: Role of DNA Polymerase Gamma 
- DNA polymerase gamma: The enzyme responsible for replicating mitochondrial DNA. 
- Other polymerases like DNA polymerase I, Pfu polymerase, and DNA polymerase alpha are involved in nuclear DNA replication. 
Step 3: Conclusion 
DNA polymerase gamma is responsible for mitochondrial DNA replication.