Multiple Choice
In the context of the central dogma, which enzyme catalyzes transcription (synthesis of RNA from a DNA template)?
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1. Introduction to Biochemistry
Central Dogma
Multiple Choice
In the context of the central dogma, what is the primary function of tRNA during protein synthesis?
A
It carries the genetic code from DNA to the ribosome as the template for translation.
B
It delivers specific amino acids to the ribosome by matching its anticodon to codons on mRNA.
C
It catalyzes peptide bond formation as the main enzymatic component of the ribosome.
D
It unwinds the DNA double helix to allow transcription to proceed.
Verified step by step guidance1
Step 1: Understand the central dogma of molecular biology, which describes the flow of genetic information from DNA to RNA to protein.
Step 2: Identify the role of different RNA types in protein synthesis: mRNA carries the genetic code from DNA, rRNA forms the core of the ribosome and catalyzes peptide bond formation, and tRNA is involved in delivering amino acids.
Step 3: Focus on tRNA's specific function: it recognizes codons on the mRNA through its anticodon region and brings the corresponding amino acid to the ribosome.
Step 4: Recognize that tRNA acts as an adaptor molecule, matching each codon on the mRNA with the correct amino acid during translation.
Step 5: Conclude that the primary function of tRNA during protein synthesis is to deliver specific amino acids to the ribosome by matching its anticodon to codons on mRNA.
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