객관식
Translation termination occurs when a ribosome interacts with which of the following structures?
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15. Gene Expression
Steps of Translation
객관식
In the process of translation, what would you expect to find bound to the stop codon at the A site of the ribosome?
A
An aminoacyl-tRNA
B
A peptidyl transferase
C
A ribosomal subunit
D
A release factor
검증된 단계별 안내1
Understand the process of translation: Translation is the process by which ribosomes synthesize proteins using mRNA as a template. It involves initiation, elongation, and termination phases.
Identify the role of the stop codon: The stop codon is a nucleotide triplet within mRNA that signals the end of translation. Common stop codons include UAA, UAG, and UGA.
Recognize what happens at the A site during termination: During the termination phase, the A site of the ribosome is where the stop codon is recognized.
Explain the function of release factors: Release factors are proteins that bind to the stop codon at the A site, facilitating the release of the newly synthesized polypeptide chain from the ribosome.
Conclude the process: Once the release factor binds to the stop codon, it triggers the disassembly of the translation complex, allowing the ribosome subunits to separate and the mRNA to be released.
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