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Discovery of RE

Which of the ...

Question

Which of the following enzyme of transcription helps in opening of DNA helix as well as transcribing it?

A

DNA polymerase

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B

RNA polymerase

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C

DNA helicase

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D

Topoisomerase

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Solution

The correct option is B RNA polymerase
RNA polymerase has ability to transcribe the DNA as well as opening the DNA double helix.
DNA polymerase can replicate the DNA but DNA helicase opens the helix.
Topoisomerase releases tension felt in DNA.

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Similar questions

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

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

Q. Read the following statements regarding transcription.
1. RNA polymerase initiates the process of transcription with the help of sigma factor.
2. RNA polymerase also facilitates opening of the DNA double helix in prokaryotes.
3. Transcription requires primer
4. In bacteria, there are three types of RNA polymerases.
How many of the above statements are incorrect?

Q. Which of the given enzymes is capable of opening of DNA helix and polymerisation of nucleotides?

Q. Construct and label a transcription unit from which the RNA segment given below has been transcribed. Write the complete name of the enzyme that transcribed this RNA.

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