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Which enzyme plays important role in transcription?

1. DNA dependent RNA polymerase
2. DNA dependent DNA polymerase
3. RNA dependent DNA polymerase
4. RNA dependent RNA polyrnerase

Correct answer: DNA dependent RNA polymerase

Solution

Transcription is the process of making RNA from a DNA template, and the enzyme that catalyzes this is DNA-dependent RNA polymerase. DNA-dependent DNA polymerase is used in DNA replication, while RNA-dependent polymerases are involved in reverse transcription or RNA virus replication.

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