Tetracycline is an antibiotic that binds to the 30S subunit of the bacterial ribosome. This information...
Tetracycline is an antibiotic that binds to the 30S subunit of the bacterial ribosome. This information suggests that the most likely mechanism by which tetracycline blocks bacterial growth is to inhibit synthesis of: Question options: A. mRNA. B. rRNA. C. a specific bacterial protein. D. a specific class of bacterial proteins. E. all bacterial proteins.
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Tetracycline is an antibiotic that binds to the 30S subunit of
the bacterial ribosome. This information...
Tetracycline inhibits protein synthesis by which mechanism? It interacts with the small ribosomal subunit, blocking access...
Tetracycline inhibits protein synthesis by which mechanism? It interacts with the small ribosomal subunit, blocking access of the aminoacyl-tRNA to the mRNA-ribosome complex. It binds to the 305 subunit and distorts its structure, interfering with the initiation of protein synthesis. It binds irreversibly to a site on the 50S subunit of the bacterial ribosome, thus inhibiting translocation. It inactivates the eukaryotic elongation factor, eEF-2, thus preventing translocation.
QUESTION 35 Tetracycline is an antibiotic used to treat bacterial infections in humans because it prevents...
QUESTION 35 Tetracycline is an antibiotic used to treat bacterial infections in humans because it prevents the growth and spread of bacteria. This drug is known to bind strongly and specifically to the A site in the 30S ribosomal subunit. Based on this information you would expect that: a. tetracycline does not affect translation in eukaryotic cells. b. tetracycline inhibits RNA splicing in prokarytes. c. tetracycline will prevent the small ribosomal subunit from binding to the Shine-Dalgarno sequence. d. tetracycline...
51. E. coli is being used to study various agents that inhibit protein synthesis. One agent binds...
51. E. coli is being used to study various agents that inhibit protein synthesis. One agent binds the 23S rRNA of the 50S subunit and prevents peptide bond formation. No new proteins are produced. To which antibiotic is this agent likely related? a. chloramphenicol b. streptomycin c. puromycin d. tetracycline e. erythromycin We were unable to transcribe this image57. A protein that affects the expression of many different genes is known as a L 74. One benefit of operons in...
What is the basis of interaction between the ribosome and an mRNA molecule in eukaryotes? a....
What is the basis of interaction between the ribosome and an mRNA molecule in eukaryotes? a. Specific base pairing between the 3' end of the 16 S rRNA in the 30S subunit and a conserved sequenced in the mRNA B. Specific interactions between ribosomal proteins and a binding protein that associates with the 5' end of the mRNA c. Specific base pairing between the 5' end of the 16S rRNA in the 30S subunit and a conserved sequenced in the...
1 pts Question 17 The small subunit of the bacterial ribosome binds to the 5" cap...
1 pts Question 17 The small subunit of the bacterial ribosome binds to the 5" cap on mRNA in the first step of translation initiation. True False
Which is incorrect about the initiation of translation? Select one: a. 30S subunit binds to mRNA...
Which is incorrect about the initiation of translation? Select one: a. 30S subunit binds to mRNA first by recognizing the Shine-Dalgarno sequence on mRNA. b. In bacteria, most of the starting Met codon is specifically for N-formyl methionine (fMet). c. After fMet-loaded tRNA is bound, the 50S subunit binds to make the complete translational complex. d. A complete ribosome complex migrates on an mRNA until it finds the Shine-Dalgarno sequence. e. All of these
Which is the most inappropriate description of a ribosome? Select one: a. It consists of proteins...
Which is the most inappropriate description of a ribosome? Select one: a. It consists of proteins and rRNAs. b. It has pockets for at three tRNA bindings. c. For initiation, the 30S subunit binds to mRNA before the 50S subunit binds. d. For its translational function, ribosome needs other protein factors. e. Ribosomes carry out translation at consumption of the energy from ATP.
Table 1B: Protein Synthesis with 2nd DNA Template Strand DNA Codons in the 2nd Template Strand...
Table 1B: Protein Synthesis with 2nd DNA Template Strand DNA Codons in the 2nd Template Strand mRNA Sequence (List codons) Amino Acids in the Protein **Use the Genetic Code Chart on page 217 to determine the amino acids that will be placed in the protein Questions: 19. The three letter "code words of DNA and RNA that specify amino acids are called: A. codons B. promoters C. Introns D. anticodons 20. Proteins are composed of building blocks called: A. fatty...
Question 16 (5 points) Which of the following molecular structures contain codons? Question 16 options: a...
Question 16 (5 points) Which of the following molecular structures contain codons? Question 16 options: a protein tRNA rRNA mRNA Question 17 (5 points) Once researchers identified DNA as the molecule responsible for transmitting heritable traits, they asked how information was transferred from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. Which of the following statements correctly describes the mechanism of information transfer in eukaryotes that accomplishes this task? Question 17 options: DNA from...
22. What are the roles of Dicer and RISC in the function of miRNAs? Dicer RISC...
22. What are the roles of Dicer and RISC in the function of miRNAs? Dicer RISC 23. Describe the concepts of primary, secondary, tertiary and quaternary protein structure 24. Here is a short sequence of codons. AUG CAU UGU UUU Write out the amino acids this sequence of codons encodes. Now add an insertion mutation of your choosing in the first codon and write out the new mutant sequence. What are the first four amino acids encoded by this mutant...
Tetracycline inhibits protein synthesis by which mechanism? It interacts with the small ribosomal subunit, blocking access of the aminoacyl-tRNA to the mRNA-ribosome complex. It binds to the 305 subunit and distorts its structure, interfering with the initiation of protein synthesis. It binds irreversibly to a site on the 50S subunit of the bacterial ribosome, thus inhibiting translocation. It inactivates the eukaryotic elongation factor, eEF-2, thus preventing translocation.
QUESTION 35 Tetracycline is an antibiotic used to treat bacterial infections in humans because it prevents the growth and spread of bacteria. This drug is known to bind strongly and specifically to the A site in the 30S ribosomal subunit. Based on this information you would expect that: a. tetracycline does not affect translation in eukaryotic cells. b. tetracycline inhibits RNA splicing in prokarytes. c. tetracycline will prevent the small ribosomal subunit from binding to the Shine-Dalgarno sequence. d. tetracycline...
51. E. coli is being used to study various agents that inhibit protein synthesis. One agent binds the 23S rRNA of the 50S subunit and prevents peptide bond formation. No new proteins are produced. To which antibiotic is this agent likely related? a. chloramphenicol b. streptomycin c. puromycin d. tetracycline e. erythromycin We were unable to transcribe this image57. A protein that affects the expression of many different genes is known as a L 74. One benefit of operons in...
1 pts Question 17 The small subunit of the bacterial ribosome binds to the 5" cap on mRNA in the first step of translation initiation. True False
Table 1B: Protein Synthesis with 2nd DNA Template Strand DNA Codons in the 2nd Template Strand mRNA Sequence (List codons) Amino Acids in the Protein **Use the Genetic Code Chart on page 217 to determine the amino acids that will be placed in the protein Questions: 19. The three letter "code words of DNA and RNA that specify amino acids are called: A. codons B. promoters C. Introns D. anticodons 20. Proteins are composed of building blocks called: A. fatty...
Question 16 (5 points) Which of the following molecular structures contain codons? Question 16 options: a protein tRNA rRNA mRNA Question 17 (5 points) Once researchers identified DNA as the molecule responsible for transmitting heritable traits, they asked how information was transferred from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. Which of the following statements correctly describes the mechanism of information transfer in eukaryotes that accomplishes this task? Question 17 options: DNA from...
22. What are the roles of Dicer and RISC in the function of miRNAs? Dicer RISC 23. Describe the concepts of primary, secondary, tertiary and quaternary protein structure 24. Here is a short sequence of codons. AUG CAU UGU UUU Write out the amino acids this sequence of codons encodes. Now add an insertion mutation of your choosing in the first codon and write out the new mutant sequence. What are the first four amino acids encoded by this mutant...
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