The A site, P site, and E sites each control ________(in order) during translati
ID: 58774 • Letter: T
Question
The A site, P site, and E sites each control ________(in order) during translation.a. Amino acid bond transfer (A), protein processing (P), and elongation of the peptide chain (E)
b. Activation of ribosome activity (A), processing of amino acids (P), elongation of the peptide chain (E)
c. Activation of tRNAs (A), protease-based release of the protein product (P), exit of empty rRNAs (E)
d. Both A and C are correct.
e. Binding incoming tRNAs (A), retention of the peptide chain during elongation (P); exit of deacylated tRNAs (E) The A site, P site, and E sites each control ________(in order) during translation.
a. Amino acid bond transfer (A), protein processing (P), and elongation of the peptide chain (E)
b. Activation of ribosome activity (A), processing of amino acids (P), elongation of the peptide chain (E)
c. Activation of tRNAs (A), protease-based release of the protein product (P), exit of empty rRNAs (E)
d. Both A and C are correct.
e. Binding incoming tRNAs (A), retention of the peptide chain during elongation (P); exit of deacylated tRNAs (E) The A site, P site, and E sites each control ________(in order) during translation.
a. Amino acid bond transfer (A), protein processing (P), and elongation of the peptide chain (E)
b. Activation of ribosome activity (A), processing of amino acids (P), elongation of the peptide chain (E)
c. Activation of tRNAs (A), protease-based release of the protein product (P), exit of empty rRNAs (E)
d. Both A and C are correct.
e. Binding incoming tRNAs (A), retention of the peptide chain during elongation (P); exit of deacylated tRNAs (E)
Explanation / Answer
The A site, P site, and E sites each control ________(in order) during translation.
Ans:e). Binding incoming tRNAs (A), retention of the peptide chain during elongation (P); exit of deacylated tRNAs (E).
Explanation:
A-site, P-site and E-site
A-site: the ribosomal site most frequently occupied by aminoacyl-tRNA. The aminoacyl-tRNA in the A-site functions as the acceptor for the growing protein during peptide bond formation.
P-site: the ribosomal site most frequently occupied by peptidyl-tRNA, i.e. the tRNA carrying the growing peptide chain. The P-site is also referred to as the puromycin sensitive site. Puromycin is an antibiotic which shows similarities with a part of aminoacyl-tRNA. When puromycin is present in the A-site, the peptide can be linked to puromycin via a peptide bond. Thus, peptidyl-tRNA in the P-site is located in the puromycin sensitive site.
E-site: the ribosomal site harbouring decylated tRNA on transit out from the ribosome.
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