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easyMCQNEET 2020 E12026Biology
1 mark

Name the enzyme that facilitates opening of DNA helix during transcription.

  1. A
    DNA ligase
  2. B
    DNA helicase
  3. C
    DNA polymerase
  4. D
    RNA polymerase

Solution & Step-by-step Explanation

During transcription, RNA polymerase binds to the promoter and initiates transcription. It itself facilitates the opening (unwinding) of the DNA helix. (Note: DNA helicase is primarily associated with DNA replication).

Practice this question

Try it yourself before checking the explanation above.

Name the enzyme that facilitates opening of DNA helix during transcription.
A
DNA ligase
B
DNA helicase
C
DNA polymerase
D
RNA polymerase

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Molecular Basis of InheritanceTranscription

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