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Question

The enzyme involved in transcription is

A
RNA polymerase
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B
DNA polymerase I
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C
DNA polymerase II
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D
DNA polymerase III
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Solution

The correct option is A RNA polymerase
During transcription, RNA polymerase makes a copy of a gene from the DNA to mRNA as needed. During transcription, the DNA site at which RNA polymerase binds is called as a promoter. Transcription commences with one or more sigma factor protein binds to the RNA polymerase holoenzyme, allowing it to bind to promoter DNA. RNA polymerase creates a transcription bubble, which separates the two strands of the DNA helix. This is done by breaking the hydrogen bonds between complementary DNA nucleotides.

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BIOLOGY
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