Telomerase enzyme is a
Show Hint
- DNA dependent DNA polymerase
- DNA dependent RNA polymerase
- RNA dependent RNA polymerase
- Reverse transcriptase
The Correct Option is D
Solution and Explanation
Step 1: Concept
Telomeres are repetitive DNA sequences at the ends of chromosomes that shorten during each round of replication.
Step 2: Meaning
Telomerase is a ribonucleoprotein that adds these repetitive sequences back to the chromosome ends.
Step 3: Analysis
It carries its own internal RNA template and uses it to synthesize DNA. This activity—making DNA from an RNA template—is technically a reverse transcription activity.
Step 4: Conclusion
Telomerase is an RNA-dependent DNA polymerase, which classifies it as a reverse transcriptase. Final Answer: (D)
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