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NEET 2020
Exam
NEET
Year
2020
Subject
Zoology
Chapter
Molecular Basis of Inheritance

NEET 2020 · Zoology · Molecular Basis of Inheritance

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

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

Options

  1. ADNA helicase
  2. BDNA polymerase
  3. CRNA polymerase
  4. DDNA ligase

Correct answer

C. RNA polymerase

Step-by-step solution

The process of copying genetic information from one strand of the DNA into RNA is known as transcription. The enzyme the catalyzes transcription is DNA-dependent RNA polymerase. It binds to the promoter site of DNA and facilitates the opening up of DNA helix by breaking H-bonds between two strands of DNA. This opening up of the DNA helix is called a transcriptional bubble.
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