What determines the amino acid that is attached to an uncharged tRNA? OI. Its peptidyl transferase. O I. It is determined by the anticodon and codon and third-base wobble. III. The appropriate site on the ribosome. O v. Its aminoacyl TRNA synthetase. The small ribosomal subunit. V.

What determines the amino acid that is attached to an uncharged tRNA? OI. Its peptidyl transferase. O I. It is determined by the anticodon and codon and third-base wobble. III. The appropriate site on the ribosome. O v. Its aminoacyl TRNA synthetase. The small ribosomal subunit. V.

Name: What determines the amino acid that is attached to an uncharged tRNA?
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Description: What determines the amino acid that is attached to an uncharged tRNA?Its peptidyl transferase.It is determined by the anticodon and codon and third-base wobble.The appropriate site on the ribosome.Its aminoacy TRNA synthetase,OV.The small ribosomal

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter13: Gene Expression

Section: Chapter Questions

Problem 4TYU: The genetic code is defined as a series of _______________ in _______________. (a) anticodons; tRNA...

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When the ribosome reaches a nonsense codon, which of the following occurs? a methionine is incorporated the polypeptide is released a peptide bond forms the A site binds to a charged tRNA
Which of the following anticodons of a tRNA molecule can base pair with three different codons on an mRNA molecule? What is the correct answer from the choices below? AUU CCG IAU UAG GCG
After being irradiated, the gene coding for the E site is mutated, causing the E site to have a greater attraction for tRNA. Which process will be most directly affected by this mutation? DNA replication, Transcription, or Translation
Which of the following steps in protein synthesis does not require a direct supply of energy? a. proofreading step by certain aminoacyl-tRNA synthetases b. translocation of mRNA in a ribosome c. linkage of an amino acid to its cognate tRNA d. alignment of a tRNA anticodon with an mRNA codon
Which of the following is true for the tRNA of eukaryote cells? tRNA is a) made of DNA and protein, b) the active site in carbohydrate synthesis, c) is a subunit that forms mRNA from the codon of DNA. d) found inside the endoplasmic reticulum, e) has the specific sequence of bases (anti codon) that interacts with the base sequence (codon) of mRNA.
A __________ molecule is characterized by having a peptide-binding site, a modified 5’ guanine, and an anticodon. _____________ molecules are encoded by multiple gene copies in both prokaryotes and eukaryotes, and they catalyze critical reactions functions during translation. Group of answer choices mRNA; rRNA rNA; aminoacyl tRNA synthase tRNA; rRNA rRNA; precursor RNA mRNA; tRNA
A tRNA with the attached amino acid is referred to as “charged.” The amino acid is added at which one of the following locations of the tRNA? The 3’ end of the tRNA The 5’ end of the tRNA The anticodon of the tRNA. The third position in the anticodon of the tRNA.
Which of the following is not true? There are two major classes of aminoacyl-tRNA synthetases The selectivity of the aminoacyl-tRNA synthetases for their tRNA molecules is often called the second genetic code A single activating enzyme can interact with all the tRNAs for its corresponding amino acid aminoacyl-tRNA synthetases link amino acids to tRNA molecules without the need for an energy source
When a codon in an mRNA with the sequence 5′-UAA-3′ enters the A site of a ribosome, it is not recognized by a tRNA with a complementary anticodon. Why not? What recognizes it instead?
Which of the following is/are required in the amino acid activation by aminoacyl-tRNA synthetase? A. tRNA B. Mg2+ C. GTP D. mRNA E. amino acid F. ATP G. rRNA
For each amino acid incorporated into a polypeptide the cell has to invest three high-energy phosphates (ATP or GTP). At which step of the overall process is energy investment NOT required? What is the correct answer from below? Ester bond formation between a tRNA and an amino acid Release of an aminoacyl-tRNA into the A-site of a ribosome Translocation of a ribosome along an mRNA molecule Peptide bond formation between amino acids none of the above
All of the following are true about translation EXCEPT _____. as the ribosome moves from codon to codon, amino acids brought by successive tRNAs to the ribosome form a growing polypeptide when the ribosome reaches a stop codon, its subunits detach, and the mRNA and new polypeptide are released RNA polymerase assembles a strand of mRNA complementary to the coding strand of DNA Ribosomal subunits and a tRNA-carrying methionine converge on the start codon of an mRNA