Question

In eukaryotic systems, which of the following typically stops the process of translation? Select one: a....

In eukaryotic systems, which of the following typically stops the process of translation?

Select one:

a. Rho proteins

b. Aminoacyl tRNA synthase

c. rRNA

d. Stop codons

e. Introns

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Answer #1

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Answer: Stop codons

Explanation: The process of stopping the translation is called Termination. In this process polypeptide eventually, comes to an end. Termination usually occurs when a stop codon in the messenger RNA (mRNA) enters the Acceptor site (A site). These stop codons can be recognized by release factors (which are proteins), that fit into the Peptidyl site (P site). Release factors interfere with the enzyme that forms peptides, by adding a molecule of water to the last amino acid in the chain. This results in separating the chain from the tRNA.

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