Multiple Choice
In the context of the central dogma, which enzyme synthesizes mRNA from a DNA template during transcription?
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1. Introduction to Biochemistry
Central Dogma
Multiple Choice
In the central dogma, which enzyme catalyzes the synthesis of mRNA from a DNA template during transcription?
A
Aminoacyl-tRNA synthetase
B
DNA-dependent RNA polymerase (RNA polymerase)
C
Ribosome (peptidyl transferase activity)
D
DNA polymerase
Verified step by step guidance1
Understand the central dogma of molecular biology, which describes the flow of genetic information from DNA to RNA to protein.
Identify the process of transcription, where the information in DNA is copied into messenger RNA (mRNA).
Recall that transcription requires an enzyme that synthesizes RNA using a DNA template.
Recognize that DNA-dependent RNA polymerase (commonly called RNA polymerase) is the enzyme responsible for catalyzing the synthesis of mRNA from the DNA template during transcription.
Differentiate RNA polymerase from other enzymes listed: Aminoacyl-tRNA synthetase attaches amino acids to tRNA, ribosomes catalyze peptide bond formation during translation, and DNA polymerase synthesizes DNA, not RNA.
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