Q. 4. What is transcription ? Name the enzyme catalysing it.
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Transcription of hnRNA is catalyses by – RNA polymerase II. B. During primary transcription formation the mRNA contains both coding and non-coding regions called as exons and introns. The sequence is then subjected to splicing (process of removal of introns form primary transcript).
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Transcription is the first of several steps of DNA based expression in which a particular segment of DNA is copied in to RNA by the enzyme RNA polymerase.
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