Question
DNA polymerase and RNA polymerase differ in their requirement while functioning. Explain.

Answer

S. No RNA polymerase DNA polymerase
(i) It cannot carry out proofreading. It carries out proofreading for DNA repairmechanism.
(ii) RNA polymerase does not require RNA primer for synthesis of RNA. DNA polymerase requires RNA primer for synthesis of DNA.
(iii) It uses ribonucleotides for RNA synthesis. It uses deoxyribonucleotides for DNA synthesis.

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