What is the function of polyadenylation in eukaryotes? (Choose all that apply) It moves ribosomes along MRNA during translation. It aids in the termination of translation. It stabilizes the resulting MRNA by limiting degradation at the 3' end of the molecule. It forms peptide bonds. It charges tRNAS It aids in the initiation of translation. It stabilizes the resulting MRNA by limiting degradation at the 5' end of the molecule.

What is the function of polyadenylation in eukaryotes? (Choose all that apply) It moves ribosomes along MRNA during translation. It aids in the termination of translation. It stabilizes the resulting MRNA by limiting degradation at the 3' end of the molecule. It forms peptide bonds. It charges tRNAS It aids in the initiation of translation. It stabilizes the resulting MRNA by limiting degradation at the 5' end of the molecule.

Name: What is the function of polyadenylation in eukaryotes?(Choose all tha
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Description: What is the function of polyadenylation in eukaryotes?(Choose all that apply)It moves ribosomes along MRNA during translation.It aids in the termination of translation.It stabilizes the resulting MRNA by limiting degradation at the 3' end of the mol

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

Section13.4: Translation

Problem 3C: A certain mRNA strand has the following nucleotide sequence: 5AUGACGUAUAACUUU3 What is the anticodon...

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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 best describes a sequence of events that happens during the elongation phase of translation? Group of answer choices A charged tRNA enters the P site of a ribosome; a tRNA bound to a peptide moves to the A site; an tRNA bound to a peptide exits the E site. None of these is an accurate description A charged tRNA enters the A site of a ribosome; a tRNA bound to a peptide moves to the P site; an uncharged tRNA exits the E site. An uncharged tRNA enters the A site of a ribosome; a tRNA bound to a peptide moves to the P site; a charged tRNA exits the E site. A charged tRNA enters the A site of a ribosome; a tRNA bound to a peptide moves to the E site; an tRNA bound to a peptide exits the A site.
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
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.
Which of the following is a feature of tRNA that is important for its function in translation? O The codon that pairs with the mRNA Covalent, intramolecular bonds that confer secondary structure O The aminoacyl bond to an amino acid O Its ability to serve as an enzyme that catalyzes peptide bond formation
Which of the following statements concerning translation is NOT correct? O b. O c. Polypeptide chain is extended from the C- terminus to the N-terminus. O d. The first codon of protein synthesis is AUG. Prokaryotic transcription and translation are coupled (i.e. they occur almost at the same time and at the same place). O e. Protein synthesis takes place in ribosome. During protein synthesis, the mRNA is read from 5' to 3' direction.
Which of the following statements about the post-translation modification of proteins by phosphorylation are true? Check all that apply it is usually reversible it is an important mechanism for regulating enzyme activity it changes a hydroxyl group to a phosphate group it is a modification of the R groups of proline (P), isoleucine (I) and glycine (G) 18 2 # 3 $ 4 % 5 MacBook Pro 6 v Ro 8 9 0
All of the following statements about translation are true except: Release factors recognize stop codons and prompt-cleavage of a peptide bond. Initiation factors are involved in ribosome assembly. In prokaryotes, initiator transfer RNA (tRNAf) is attached to formylmethionine. Each messenger RNA contains a start codon and a stop codon.
The piece of eukaryotic mRNA below includes the region that codes for the binding site for the initiator tRNA needed in translation. 5'-GUUUCCCGUAUACAUGCGUGCCGGGGGC-3' Using the table below, which amino acid would you expect to be on the tRNA that is the first to bind to the A site of the ribosome? AGC AGA AGG GCA CGA CUA GGA GGC GCC CGC AUA CUC AGU CCA UCA ACA CCC UCC ACC UUC CCG UCG ACG UUU CCU UCU GCG CGG GAC AAC UGC GAA CAA GGG CAC AUC CUG AAA GCU CGU GAU AAU UGU GAG CAG GGU CAU AUU CUU AAG AUG Ala Arg Asp Asn Cys Glu Gin Gly His lle Leu Lys Met Phe Pro Ser O methionine O arginine O cysteine Ovaline UUA UUG OOOO GUA GUC UAC GUG ACU UGG UAU GUU Thr Trp Tyr Val UAA UAG UGA stop
Which of the following events would NOT result in ribosomes stalling on an MRNA during translation? The MRNA in a given region is very highly folded, and the ribosome stalls because the RNA structure blocks its movement. O The correct tRNA is scarce because it is not transcribed very much in the prevailing conditions. The ribosome stalls while waiting for one of the scarce tRNAS to diffuse into the A site. O the release tactor enters the A site, decodes a stop codon and transfers an oxxYgen from water to the carboxyl group of the peptidyl-tRNA in the P site, causing stalling O Starvation for amino acids will reduce the amount of amino-acylated (charged) tRNA the ribosome will stall while waiting for a charged tRNA to enter the A site to decode the next codon
In eukaryotic cells, mRNA is modified in several ways. Match the mRNA modifications to their functions. 5' mRNA Cap Poly A Tail Introns Exons Choose [Choose] Depending on the length, this structure can help with mRNA stability. Portions of the mRNA that are spliced together to make a mature mRNA. Helps ribosomes attach to the mRNA. Portions of the mRNA that are removed before translation. [Choose] [Choose]
ADP ribosylation is one example of post-translational modification of an enzyme. Which statements about the process is true? ADP ribosylation will affect protein folding because of the addition of a large molecule ADP ribose can be added to the amine group of lysine or glutamine The ending of DNA around histones in the nucleus is altered by the ADP -ribosylation of the histone proteins in cancer cells ADP ribosylation requires ADP and the target protein as the substrates in the ADP ribosylation ADP ribosylation of phosphoinositol is an important step in signaling through a G protein-coupled receptor pathway.