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43. What did the Meselson-Stahl experiment demonstrate? A. The conservative mechanism of DNA replication B. The semi-conservative mechanism of DNA replication. C. The double helix structure of DNA. D. The dispersive mechanism of DNA replication obs

43. What did the Meselson-Stahl experiment demonstrate? A. The conservative mechanism of DNA replication B. The semi-conservative mechanism of DNA replication. C. The double helix structure of DNA. D. The dispersive mechanism of DNA replication obs

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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30. What protein that uses GTP for an energy source is a main regulator of nuclear import of proteins? A. Ran B. Bip C. TOC D. clathrin 31. What type of protein helps other proteins fold properly? A. cold shock B. chaperones C. guardians D. helicases 32. What would likely happen if a protein repeatedly fails to fold properly? A. UPR B. Ran C. TIC D. TOM 33. An integral membrane protein would generally need a membrane. A. UPR B. Bip C. stop-transfer sequence D. proteosome 34. What sequence of amino acids does a protein need to be able to enter the nucleus? A. nuclear export sequence A B. nuclear localization signal C. signal recognition particle D. all of the above 9:18 35. Which proteins are involved in import of proteins into the chloroplast? A. TIM and TOM B. TIC and TOC C. BiP and UPR D. Ran and Rab 36. How is insulin made, as discussed in class? A. Extra amino acids are added to the final polypeptide. B. Some amino acids are cut out of the final polypeptide C. All serines are removed from the final polypeptide. D. all of the above to be inserted into the 37. What types of proteins help other proteins fold correctly? A. polymerases B. chaperones C. guardians D. antibodies 8
Transcribed Image Text:30. What protein that uses GTP for an energy source is a main regulator of nuclear import of proteins? A. Ran B. Bip C. TOC D. clathrin 31. What type of protein helps other proteins fold properly? A. cold shock B. chaperones C. guardians D. helicases 32. What would likely happen if a protein repeatedly fails to fold properly? A. UPR B. Ran C. TIC D. TOM 33. An integral membrane protein would generally need a membrane. A. UPR B. Bip C. stop-transfer sequence D. proteosome 34. What sequence of amino acids does a protein need to be able to enter the nucleus? A. nuclear export sequence A B. nuclear localization signal C. signal recognition particle D. all of the above 9:18 35. Which proteins are involved in import of proteins into the chloroplast? A. TIM and TOM B. TIC and TOC C. BiP and UPR D. Ran and Rab 36. How is insulin made, as discussed in class? A. Extra amino acids are added to the final polypeptide. B. Some amino acids are cut out of the final polypeptide C. All serines are removed from the final polypeptide. D. all of the above to be inserted into the 37. What types of proteins help other proteins fold correctly? A. polymerases B. chaperones C. guardians D. antibodies 8
38. What type of mutation results in a premature stop codon in a polypeptide? A. missense B. nonsense C. antisense D. sense 39. What type of mutation results in the wrong amino acid being added to a polypeptide? A. missense B. nonsense C. antisense D. sense 40. When a tRNA binds to a stop codon but adds an amino acid instead, this is the function of a odW.SE A. suppressor tRNA B. messenger RNA C. small interfering RNA D. governing RNA 41. When polypeptides are inserted into the rough ER as they're being made in the ribosome, this is called import. A. post-translational B. co-translational C. pre-translational D. semi-translational 42. During the "quality control" mechanisms of the rough ER (think: ERAD), how are misfolded proteins detected? A. Their hydrophobic regions bind to BiP. B. Their hydrophilic regions bind to BiP C. Their charged amino acids bind to BiP D. all of the above 43. What did the Meselson-Stahl experiment demonstrate? A. The conservative mechanism of DNA replication B. The semi-conservative mechanism of DNA replication. C. The double helix structure of DNA. D. The dispersive mechanism of DNA replication 44. At the end of the Meselson-Stahl experiment, a band was detected somewhere in the middle of the log land sdt mot byvoman 916 2onnez A test tube. What did this indicate? A. The DNA in the bacteria was made using P32. B. The DNA in the bacteria was made of strands with both N14 and N15. C. The DNA in the bacteria was made of strands with only N15. orito glad aniston D. The DNA in the bacteria was made of strands with only N14.
Transcribed Image Text:38. What type of mutation results in a premature stop codon in a polypeptide? A. missense B. nonsense C. antisense D. sense 39. What type of mutation results in the wrong amino acid being added to a polypeptide? A. missense B. nonsense C. antisense D. sense 40. When a tRNA binds to a stop codon but adds an amino acid instead, this is the function of a odW.SE A. suppressor tRNA B. messenger RNA C. small interfering RNA D. governing RNA 41. When polypeptides are inserted into the rough ER as they're being made in the ribosome, this is called import. A. post-translational B. co-translational C. pre-translational D. semi-translational 42. During the "quality control" mechanisms of the rough ER (think: ERAD), how are misfolded proteins detected? A. Their hydrophobic regions bind to BiP. B. Their hydrophilic regions bind to BiP C. Their charged amino acids bind to BiP D. all of the above 43. What did the Meselson-Stahl experiment demonstrate? A. The conservative mechanism of DNA replication B. The semi-conservative mechanism of DNA replication. C. The double helix structure of DNA. D. The dispersive mechanism of DNA replication 44. At the end of the Meselson-Stahl experiment, a band was detected somewhere in the middle of the log land sdt mot byvoman 916 2onnez A test tube. What did this indicate? A. The DNA in the bacteria was made using P32. B. The DNA in the bacteria was made of strands with both N14 and N15. C. The DNA in the bacteria was made of strands with only N15. orito glad aniston D. The DNA in the bacteria was made of strands with only N14.
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