Multiple Choice
Which enzyme is primarily responsible for catalyzing the process of transcription in cells?
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15. Gene Expression
Introduction to Transcription
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What occurs during the process of transcription?
A
Proteins are synthesized from RNA templates.
B
Lipids are synthesized from carbohydrate precursors.
C
DNA is replicated to form new DNA strands.
D
RNA is synthesized from a DNA template.
Verified step by step guidance1
Transcription is the process by which RNA is synthesized from a DNA template. This occurs in the nucleus of eukaryotic cells.
The enzyme RNA polymerase binds to a specific region of the DNA called the promoter, initiating the transcription process.
RNA polymerase unwinds the DNA double helix and reads the template strand, synthesizing a complementary RNA strand by adding nucleotides in the 5' to 3' direction.
The RNA strand is synthesized using the base pairing rules, where adenine (A) pairs with uracil (U) in RNA, and cytosine (C) pairs with guanine (G).
Once the RNA strand is synthesized, it undergoes processing, such as splicing, capping, and polyadenylation, before being transported out of the nucleus for translation.
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