객관식
The P site of a ribosome does which of the following?
3726
views
15. Gene Expression
Steps of Translation
객관식
When is a peptide bond formed during the process of translation?
A
During the elongation phase, just after a tRNA charged with the next amino acid binds to the A site.
B
During the termination phase, just after the release factor binds to the A site.
C
During the elongation phase, just after a tRNA that has lost its amino acid and exits the E site.
검증된 단계별 안내1
Understand the process of translation, which is the synthesis of proteins from mRNA templates. It occurs in three main stages: initiation, elongation, and termination.
Focus on the elongation phase of translation. During this phase, amino acids are added one by one to the growing polypeptide chain.
Recognize that during elongation, tRNA molecules bring amino acids to the ribosome. Each tRNA has an anticodon that pairs with a codon on the mRNA strand.
Identify the ribosome's three sites: the A (aminoacyl) site, the P (peptidyl) site, and the E (exit) site. A new tRNA carrying an amino acid enters the A site.
A peptide bond forms between the amino acid in the P site and the new amino acid in the A site, catalyzed by the ribosome. This occurs just after the tRNA binds to the A site, during the elongation phase.
관련 영상
관련 실천
