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In the context of transcription, what is a transcription unit?
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15. Gene Expression
Introduction to Transcription
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What enzyme is responsible for catalyzing the process of transcription in cells?
A
RNA polymerase
B
Ligase
C
Helicase
D
DNA polymerase
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Understand the process of transcription: Transcription is the process by which the genetic information in DNA is copied into messenger RNA (mRNA) for protein production.
Identify the role of enzymes in transcription: Enzymes are biological catalysts that speed up chemical reactions, including the synthesis of RNA from a DNA template.
Recognize the specific enzyme involved: RNA polymerase is the enzyme responsible for catalyzing the synthesis of RNA from a DNA template during transcription.
Differentiate between the enzymes listed: Ligase is involved in joining DNA fragments, Helicase unwinds DNA strands, and DNA polymerase synthesizes DNA, not RNA.
Conclude that RNA polymerase is the correct enzyme for transcription, as it directly facilitates the formation of RNA from the DNA template.
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