Multiple Choice
In an overview of transcription, which enzyme binds to DNA and synthesizes an RNA strand complementary to the DNA template?
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10. Transcription
Overview of Transcription
Multiple Choice
In the overview of transcription, what is the primary role of RNA polymerase?
A
It transports mature mRNA from the nucleus to the cytoplasm through nuclear pores.
B
It synthesizes an RNA strand by adding ribonucleotides complementary to the DNA template strand in the 5′ to 3′ direction.
C
It synthesizes a DNA strand by adding deoxyribonucleotides complementary to the RNA template strand.
D
It joins exons together by removing introns from the pre-mRNA transcript.
Verified step by step guidance1
Understand that transcription is the process by which genetic information from DNA is copied into RNA.
Recognize that RNA polymerase is the enzyme responsible for synthesizing RNA during transcription.
Recall that RNA polymerase reads the DNA template strand in the 3′ to 5′ direction and synthesizes the RNA strand in the 5′ to 3′ direction.
Note that RNA polymerase adds ribonucleotides complementary to the DNA template strand to form the RNA transcript.
Distinguish the role of RNA polymerase from other processes such as mRNA transport, DNA synthesis, and RNA splicing, which are carried out by different molecules or enzymes.
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