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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

Question

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

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Solution

The correct answer is:

c. The peptide is passed from tRNA in the P site to the tRNA at the A site

Here's a step-by-step explanation:

  1. The process of translation begins with the initiation phase. During this phase, the small ribosomal subunit binds to the mRNA near its 5' end. This is not the polyA tail, which is at the 3' end of the mRNA, so option b is incorrect.

  2. The initiator tRNA, carrying the amino acid methionine, then binds to the start codon of the mRNA. The large ribosomal subunit then binds, completing the initiation complex. The tRNA is in the P site of the ribosome, not the E site, so option a is incorrect.

  3. During the elongation phase of translation, incoming tRNAs carrying amino acids bind to the A site of the ribosome. The peptide chain attached to the tRNA in the P site is transferred to the tRNA in the A site. This is what option c is describing, so it is correct.

  4. The ribosome then moves, or translocates, along the mRNA, moving the tRNA in the A site to the P

This problem has been solved

Similar Questions

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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

List the steps of translation in correct order.Rank the options below.A ribosome binds to mRNA.A ribosome binds to mRNA. open choices for rankingThe tRNA is released from the ribosome and is available to pick up another amino acid.The tRNA is released from the ribosome and is available to pick up another amino acid. open choices for rankingA tRNA anticodon binds to a complementary mRNA codon.A tRNA anticodon binds to a complementary mRNA codon. open choices for rankingA new amino acid is linked to the growing peptide chain.

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

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