Multiple Choice
In an overview of transcription, which enzyme is responsible for synthesizing RNA from a DNA template?
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10. Transcription
Overview of Transcription
Multiple Choice
In an overview of transcription, what is the primary role of RNA polymerase?
A
It joins Okazaki fragments on the lagging strand during DNA replication.
B
It removes introns from pre-mRNA and ligates exons together to form mature mRNA.
C
It binds to DNA at a promoter and catalyzes the synthesis of an RNA strand complementary to the DNA template by adding ribonucleotides in the direction.
D
It transports amino acids to the ribosome by matching anticodons to codons during translation.
Verified step by step guidance1
Identify the main function of RNA polymerase in the process of transcription, which involves synthesizing RNA from a DNA template.
Recall that RNA polymerase binds to a specific region on the DNA called the promoter to initiate transcription.
Understand that RNA polymerase catalyzes the formation of an RNA strand by adding ribonucleotides complementary to the DNA template strand.
Note the directionality of RNA synthesis, which occurs in the 5\' to 3\' direction, meaning nucleotides are added to the 3\' end of the growing RNA molecule.
Distinguish this role from other processes such as DNA replication (Okazaki fragment joining), RNA processing (intron removal and exon ligation), and translation (amino acid transport by tRNA).
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