Question:
Which of the following does NOT require a primer in order to function?
Which of the following does NOT require a primer in order to function?
Show Hint
RNA polymerase: no primer needed.
DNA polymerases: require a primer (RNA or DNA).
Reverse transcriptase: requires a primer.
DNA polymerases: require a primer (RNA or DNA).
Reverse transcriptase: requires a primer.
Updated On: Aug 18, 2026
- DNA Pol I
- DNA Pol II
- RNA polymerase
- Reverse transcriptase
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Different enzymes have different requirements for initiation.
Some require primers, others do not.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the primer requirements of enzymes.
Step 3: Detailed Explanation:
DNA polymerases (Pol I, Pol II) require a primer.
Reverse transcriptase requires a primer.
RNA polymerase does NOT require a primer.
It initiates transcription de novo.
Thus, RNA polymerase does not require a primer.
Step 4: Final Answer:
RNA polymerase does NOT require a primer.
Hence, the correct option is (C).
Different enzymes have different requirements for initiation.
Some require primers, others do not.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the primer requirements of enzymes.
Step 3: Detailed Explanation:
DNA polymerases (Pol I, Pol II) require a primer.
Reverse transcriptase requires a primer.
RNA polymerase does NOT require a primer.
It initiates transcription de novo.
Thus, RNA polymerase does not require a primer.
Step 4: Final Answer:
RNA polymerase does NOT require a primer.
Hence, the correct option is (C).
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