An elongating ribosome is bound to appropriate tRNAs in both the A and P sites and is
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Question:
An elongating ribosome is bound to appropriate tRNAs in both the A and P sites and is ready for peptidyl transfer. What happens next?
A. The carboxyl end of the polypeptide chain is released from the P-site tRNA and joined to the free amino group of the amino acid linked to the A-site tRNA. | ||
B. The carboxyl end of the amino acid is released from the A-site tRNA and joined to the free amino group of the polypeptide chain linked to the P-site tRNA. | ||
C. The tRNA with the growing peptide chain is translocated to the E-site where the amino acid from the A-site tRNA will be linked to the polypeptide chian. | ||
D. The tRNA with the amino acid attached is translocated to the E-site before it is linked to the growing polypeptide chain. |
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