Which of the following is NOT true about polypeptides? The peptide bond that links the amino acids together is a type of covalent bond formed through dehydration synthesis. If the overall isoelectric charge of a polypeptide is negative, it will be pulled towards the cathode end during gel electrophoresis. The polypeptide chain modified with ubiquitin molecules are tagged for proteasomal degradation In prokaryotic translation, the initial polypeptide chain produced has a formylmethionine amino acid at the N-terminal.

Which of the following is NOT true about polypeptides? The peptide bond that links the amino acids together is a type of covalent bond formed through dehydration synthesis. If the overall isoelectric charge of a polypeptide is negative, it will be pulled towards the cathode end during gel electrophoresis. The polypeptide chain modified with ubiquitin molecules are tagged for proteasomal degradation In prokaryotic translation, the initial polypeptide chain produced has a formylmethionine amino acid at the N-terminal.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter15: Genes And Proteins

Section: Chapter Questions

Problem 3VCQ: Figure 15.16 Many antibiotics inhibit bacterial protein synthesis. For example, tetracycline blocks...

See similar textbooks

Similar questions

E. coli is the most used prokaryote in studying translation. List 3 protein factor for each of the 3 steps of translation
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 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
Posttranslational modifications of proteins do not include: peptide bond formation glycosylation acetylation of N-terminal peptide bond cleavage disulfide bond formation QUESTION 16 14 15 16 streptomycin puromycin 17 18 19 20 Which one of the following antibiotics does NOT function by interfering with the translational/post-translation process tunicamycin penicillin O tetracyclin O O
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.
Match the post-translational protein modification to its function. Creates new binding sites by neutralizing positive charges Form protein complexes through quatenary structures Protein localization in the endomembrane system Targets proteins for degradation Creates new binding sites by adding negative charges Lipid anchors Glycosylation Alkylation Polymerization Phosphorylation Aceylation Ubiquitination…
An RNA polymer is made by using the enzyme polynucleotide phosphorylase with equal quantities of CTP and GTP. When this RNA is used in an in vitro translation system, all of the following amino acids could be incorporated into a newly made polypeptide, except: glycine (Gly) histidine (His) proline (pro) alanine (Ala) arginine (Arg)
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.
Which of the following interactions in E. coli ensures that the start codon of an mRNA is accurately positioned in a ribosome at the initiation of translation? O binding between the mRNA Shine-Dalgarno sequence and ribosomal proteins base-pairing between the mRNA Shine-Dalgarno sequence and rRNA of the small ribosomal subunit O binding between ribosomal proteins and the initiation factor that base-pairs with the start codon O base-pairing between the mRNA Shine-Dalgarno sequence and rRNA of the large ribosomal subunit
True or false Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines Both pentose nucleic acid and deoxypentose nucleic acid and deoxypentose nucleic acid Contain the same purines RNA contains cytosine and thymine DNA and RNA are hydrolysed by weak alkali The anticodon of tRNA finds the complementary codon on mRNA The amino acid is attached to end of tRNA The amino acid is recognized by the anticodon of tRNA A given tRNA can be charged with only one particular amino acid
List and describe the sequential steps of TRANSLATION in prokaryotic (bacterial) cells. Don’t be too detailed, but provide enough information about the key steps.
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