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Which of these is a reverse transcriptase?

Q. Which of these is a reverse transcriptase?

1. DNA-dependent RNA polymerase

2. DNA-dependent DNA polymerase

3. RNA-dependent RNA polymerase

4. RNA-dependent DNA polymerase

 

 

Answer: 4 (RNA-dependent DNA polymerase)

 

Explanation:

An enzyme that uses DNA to synthesize RNA is called DNA-dependent RNA polymerase or transcriptase.

An enzyme that catalyzes the synthesis of a new DNA strand using a template DNA strand is called DNA-dependent DNA polymerase or DNA replicase.

An enzyme that catalyzes the replication of RNA from an RNA template is called RNA-dependent RNA polymerase or RNA replicase.

An enzyme that catalyzes the synthesis of a DNA strand using RNA as a template strand is called RNA-dependent DNA polymerase or reverse transcriptase.

 

 

 

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