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Which of the following statements about the function of RNA polymerase is correct?
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15. Gene Expression
Introduction to Transcription
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What is the primary function of RNA polymerase during transcription?
A
It translates RNA into proteins.
B
It replicates DNA strands.
C
It synthesizes RNA by using a DNA template.
D
It unwinds the DNA double helix.
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Understand the process of transcription: Transcription is the first step in gene expression where a segment of DNA is copied into RNA by the enzyme RNA polymerase.
Identify the role of RNA polymerase: RNA polymerase is responsible for synthesizing RNA by using a DNA template. It reads the DNA sequence and assembles the corresponding RNA nucleotides.
Clarify the function of RNA polymerase: During transcription, RNA polymerase binds to the promoter region of the DNA and unwinds the DNA double helix to expose the template strand.
Explain the synthesis process: RNA polymerase moves along the DNA template strand, adding complementary RNA nucleotides to build a single-stranded RNA molecule.
Differentiate from other processes: Unlike translation, which involves the synthesis of proteins from RNA, transcription specifically involves the creation of RNA from a DNA template.
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