Termination of protein synthesis occurs when a stop or termination codon is in t

Question

Termination of protein synthesis occurs when a stop or termination codon is in the A site. This occurs because the stop codons recognize specific termination tRNAs that do not have amino acids attached to them. as the stop codon moves from the A site to the P site the tRNA containing the newly synthesized protein is released. these codons are recognized by specific proteins which also release the newly synthesized protein chain from the ribosome. there are no tRNAs that base pair with stop codons, so translation stalls and the ribosome dissociates. EF-G binds to the empty A-site and pushes the P-site tRNA with attached peptide out of the ribosome. During ribosomal protein synthesis, the growing peptide chain is transferred from the tRNA in the P site to the amino acyl tRNA in the A site. is transferred from the tRNA in the E site to the amino acyl tRNA in the P site. is transferred from the tRNA in the A site to the amino acyl tRNA in the P site. is transferred from the tRNA in the P site to the amino acyl tRNA in the E site. is transferred from the tRNA in the A site to the amino acyl tRNA in the E site. Which amino acid has only one codon triplet? phenylalanine alanine methionine aspartate None of the answers is correct.

Explanation / Answer

1. There are no tRNA's that base pair with stop codons, so translation stalls and the ribosomes dissociates

2. is transfered from the tRNA in the E site to the amino acyl tRNA in the P site

3. Methionine

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