Knowee
Questions
Features
Study Tools

During the process of translation, the growing polypeptide chain is released from the ribosome when:Select one:a. A chain terminating codon is reachedb. The poly A tail is reachedc. A chain terminating tRNA binds to the ribosomed. The 7-methylguanosine cap is reached

Question

During the process of translation, the growing polypeptide chain is released from the ribosome when:Select one:a. A chain terminating codon is reachedb. The poly A tail is reachedc. A chain terminating tRNA binds to the ribosomed. The 7-methylguanosine cap is reached

🧐 Not the exact question you are looking for?Go ask a question

Solution

The growing polypeptide chain is released from the ribosome during the process of translation when a chain terminating codon is reached. So, the correct answer is a. A chain terminating codon is reached.

Here's a step-by-step explanation:

  1. Translation begins with the binding of a ribosome to an mRNA molecule. The ribosome starts at the beginning of the mRNA and scans along the molecule until it finds the start codon (AUG).

  2. The ribosome then proceeds to sequentially bind tRNAs (transfer RNAs), each of which is specific for a given codon on the mRNA. The tRNA carries the corresponding amino acid for that codon.

  3. As the ribosome moves along the mRNA, it continues to add on amino acids brought by tRNAs, thus growing the polypeptide chain.

  4. This process continues until the ribosome encounters a stop codon (UAA, UAG, or UGA) on the mRNA. These codons do not code for an amino acid but signal the end of protein synthesis.

  5. When a stop codon is reached, the polypeptide chain is released from the ribosome, marking the end of translation.

This problem has been solved

Similar Questions

During the mRNA translation, in what site of the ribosome binds the incoming tRNA molecule carrying the amino acid that will be added to the growing polypeptide chain? Z-site E-site W-site P-site A-site

During the process of translation:Select one:a. The incoming tRNA must first bind to the E siteb. Initiation begins with the binding of the ribosomal larger subunit to the polyA tail of the mRNAc. The peptide is passed from tRNA in the P site to the tRNA at the A sited. The mRNA is translated by one ribosome at a time

Translation of mRNA in bacterial cells begins when A. An amino acid is added to the C-terminus of a polypeptide chain B. The initiator fMet-tRNA binds to a free 30S ribosomal subunit C. Peptidyl transferase catalyzes transpeptidation between adjacent amino acids D. The ribosome disengages from mRNA

The __________ reaction sequentially links adjacent amino acids into the growing polypeptide chain. A. Aminoacyl-tRNA binding B. transpeptidation C. Translocation D. peptidation

Accuracy in the translation of mRNA into the primary structure of a polypeptide depends on:Select one alternative:amino acids being attached to tRNA molecules that contain the correct codon.the anticodon binding to the corresponding codon.small ribosomal subunits binding to specific large ribosomal subunits.ribosomes binding to specific mRNA molecules.

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.