Sample Questions — Transcription
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MCQ
Match the following:
✅ Correct Answer: D
Matches specific functions of each RNA polymerase and sigma factor.
MCQ
Why is promoter essential for transcription?
✅ Correct Answer: C
Promoter region helps RNA polymerase recognize transcription start site.
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MCQ
The segment of DNA transcribed into RNA is known as:
✅ Correct Answer: C
A transcription unit is defined from promoter to terminator.
MCQ
Which RNA polymerase in eukaryotes synthesizes pre-mRNA?
✅ Correct Answer: B
It transcribes precursor of mRNA in eukaryotes.
MCQ
What is the role of the sigma (σ) factor in prokaryotic transcription?
✅ Correct Answer: C
σ subunit is involved only in initiation and then dissociates.
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