In the elongation stage of translation, which of the following options is correct? the polypeptide chain grows from the C terminus to the N terminus. O the mRNA is read in a 3'-to-5' direction. O rRNA is catalytically active. O tRNA is catalytically active. O peptidyl transferase activity is catalyzed by a ribosomal protein.

In the elongation stage of translation, which of the following options is correct? the polypeptide chain grows from the C terminus to the N terminus. O the mRNA is read in a 3'-to-5' direction. O rRNA is catalytically active. O tRNA is catalytically active. O peptidyl transferase activity is catalyzed by a ribosomal protein.

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 11TYU

See similar textbooks

Similar questions

The genetic code is defined as a series of _______________ in _______________. (a) anticodons; tRNA (b) codons; DNA (c) anticodons; mRNA (d) codons; mRNA (e) codons and anticodons; rRNA
A certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon for each codon? What is the amino acid sequence of the polypeptide? (Use Figure 13-5 to help answer this question.) Figure 13-5 The genetic code The genetic code specifies all possible combinations of the three bases that compose codons in mRNA. Of the 64 possible codons, 61 specify amino acids (see Figure 3-17 for an explanation of abbreviations). The codon AUG specifies the amino acid methionine and also signals the ribosome to initiate translation (start). Three codonsUAA, UGA, and UAGdo not specify amino acids; they terminate polypeptide synthesis (stop).
Eukaryotic mRNA: usessnRNPs to cut out introns and seal together translatableexons. uses a spliceosome mechanism made of DNA to recognizeconsensus sequences to cut and splice. has a guanine cap on its 39 end and a poly(A) tail on its 59 end. is composed of adenine, thymine, guanine, and cytosine. codes the guanine cap and poly(A) tail from the DNAtemplate.
Portions of eukaryotic mRNA sequence that are removed during RNA processing are . a. exons b. caps c. poly-A tails d. introns
Which of the following statements about the translation process is correct? a. RNA is made complimentary to DNA b. A protein is made from the DNA base sequence c. DNA is made complimentary to RNA d. A protein is made from the RNA base sequence
Which of the following is NOT an event associated with translation termination? A stop codon enters the A site on the ribosome. A Release Factor enters the A site A terminal amino acid is added to the polypeptide to signal the end of translation. Release Factor mediates the hydrolysis of the polypeptide from the tRNA at the P site. The polypeptide and tRNA are released and the ribosomal subunits are separated.
Consider this list (below) of steps involved in translation. These steps are out of order. TRANSLATION: 1. the small and large ribosomal sub-units unite2. two amino acids join together.3. another tRNA anti-codon bonds with another mRNA codon 4. an initial tRNA bearing a specific amino acid arrives at the ribosome 5. the process continues until a protein molecule is completed6. at the synthesis site, initial mRNA codons are inserted
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
Which of the following statements about translation is false? In eukaryotes, the 5' cap and the 3' poly(A) tail are involved in translation initiation. Peptidyl-transferase activity during translation is the property of a ribozyme. A base at the first position of an anticodon on the tRNA would pair with a base at the third position of the mRNA. The growing peptide chain is transferred from the tRNA in the P site to the tRNA in the A site. Ribosomes move along an mRNA in the 3’ → 5' direction.
Which of the following are stages of translation? Select all that apply. A. A tRNA binds to the second codon and its carried amino acid forms a peptide bond with methionine. B. As the ribosome moves from codon to codon, amino acids brought by successive tRNAs to the ribosome form a growing polypeptide. C. When the ribosome reaches a stop codon, its subunits detach, and the mRNA and new polypeptide are released. D. Ribosomal subunits and a tRNA carrying methionine converge on the start codon of an mRNA. E. The binding of a tRNA to the third codon causes the ribosome to release the first tRNA and move to the next codon.
Which of the following are stages of translation? Select all that apply. a.As the ribosome moves from codon to codon, amino acids brought by successive tRNAs to the ribosome form a growing polypeptide. b.A tRNA binds to the second codon and its carried amino acid forms a peptide bond with methionine. c.When the ribosome reaches a stop codon, its subunits detach, and the mRNA and new polypeptide are released. d.Ribosomal subunits and a tRNA carrying methionine converge on the start codon of an mRNA. e.The binding of a tRNA to the third codon causes the ribosome to release the first tRNA and move to the next codon.
Which of the following is least likely following translation termination? The polypeptide is released. The mRNA is reused. The ribosome is reused. The polypeptide is immediately active.