Multiple Choice
In the context of the central dogma, what amino acid is specified by the mRNA codon ?
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1. Introduction to Biochemistry
Central Dogma
Multiple Choice
In the context of the central dogma, which enzyme synthesizes mRNA from a DNA template during transcription?
A
DNA polymerase
B
Ribosome (peptidyl transferase activity)
C
RNA polymerase (DNA-dependent RNA polymerase)
D
Aminoacyl-tRNA synthetase
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 can synthesize RNA using a DNA template; this enzyme reads the DNA sequence and builds a complementary RNA strand.
Recognize that DNA polymerase synthesizes DNA, not RNA, and ribosomes are involved in translation, not transcription.
Conclude that the enzyme responsible for synthesizing mRNA from a DNA template during transcription is RNA polymerase, specifically DNA-dependent RNA polymerase.
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