Briefly describe the reaction catalysed by DNA polymerase III. In your answer, describe the two polymerase...
Briefly describe the reaction catalysed by DNA polymerase III. In your answer, describe the two polymerase active sites and the type of bond catalysed.
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Briefly describe the reaction catalysed by DNA polymerase III.
In your answer, describe the two polymerase...
Describe the roles of DNA polymerase I, DNA polymerase III, gyrase, helicase, primase, and ligase in...
Describe the roles of DNA polymerase I, DNA polymerase III, gyrase, helicase, primase, and ligase in the replication of E. coli DNA. What features of the E. coli replisome and of DNA polymerase III’s structure are associated with replication processivity? How do mammalian cells prime discontinuous strand replication and how do they remove RNA primers?
Describe DNA replication on the leading and lagging strands of DNA. Your answer must include a...
Describe DNA replication on the leading and lagging strands of DNA. Your answer must include a description of the roles of the following enzymes: -DNA polymerase I (5’-3’polymerase activity, 3’-5’ exonuclease activity, 5’-3’ exonuclease activity) -DNA polymerase III (5’-3’polymerase activity, 3’-5’ exonuclease activity) -helicase, primase, ligase, gyrase
1. Describe the details of these two fundamental properties of the activity of DNA polymerase a. The...
1. Describe the details of these two fundamental properties of the activity of DNA polymerase a. The direction of synthesis of the chain growth of the new strand b. What is required for DNA polymerase to add additional nucleotides?
SELLUN 9. Contrast the functions of DNA polymerase III and DNA polymerase I. 10. Why do...
SELLUN 9. Contrast the functions of DNA polymerase III and DNA polymerase I. 10. Why do are the start points of DNA replication in eukaryotic and prokaryotic organisms AT rich? 11. What is the start point of DNA replication called in E. coli? What is it called in humans? 12. In DNA replication in E. coli which enters the replication fork first, DnaA protein, or Helicase? 13. In eukaryotes, two proteins are involved in linking DNA replication to S phase...
Polymerase Chain Reaction (PCR) uses a special heat-stable DNA polymerase (Taq polymerase) that is slightly less...
Polymerase Chain Reaction (PCR) uses a special heat-stable DNA polymerase (Taq polymerase) that is slightly less accurate than DNA polymerase (Pol I) purified from E. coli. Taq polymerase will therefore introduce wrong bases into a growing DNA chain more frequently than will Pol I. In which one or more of the following applications of PCR will this type of inaccuracy be a problem? Explain why. Detection of bacterial DNA in infected tissues from patients. Detection of viral RNA in infected...
Question 23 Short Answer Question 2. The enzyme DNA polymerase is used to synthesize DNA, and...
Question 23 Short Answer Question 2. The enzyme DNA polymerase is used to synthesize DNA, and the enzyme RNA polymerase is used to synthesize RNA. Using the content discussed in BIO130, describe two additional differences in how these enzymes function (not including the bases used). (3 sentences maximum, 2 marks)
18. DNA polymerase III needs a to be present before it can begin copying DNA A....
18. DNA polymerase III needs a to be present before it can begin copying DNA A. Promoter B. Phosphorylation Cascade C. RNA Primer D. Transcription Factor 19. This molecule is a monomer of a. RNA b. DNA c. ATP d. Protein 20. Which organelle often contains numerous ribosomes? a. Rough Endoplasmic Reticulum b. Smooth Endoplasmic Reticulum c. Golgi Apparatus d. Nucleus 21. What type of mutation would occur if CAU mutated to CAC? a. Missense b. Silent c. Major d....
Which of the following statements about Polymerase Chain Reactions is wrong? a. DNA is briefly heated...
Which of the following statements about Polymerase Chain Reactions is wrong? a. DNA is briefly heated to break the hydrogen bonds holding two strands together. b. Primers hybridize to sequences at opposite ends of the target sequence on the same strand. c. DNA is cooled to allow primers to form hydrogen bonds with the ends of the target sequence. d. The three steps of PCR are denaturation, annealing, and extension. e. PCR produces specific DNA fragments for cloning. f. Taq...
Which is not one of the elements needed to amplify DNA by polymerase chain reaction (PCR)?...
Which is not one of the elements needed to amplify DNA by polymerase chain reaction (PCR)? Question 16 options: A) Nucleoside triphosphates that serve as the source of the nucleotides A, T, C, and G needed in the synthesis of the new strands of DNA B) A restriction endonuclease enzyme that cleaves DNA at specific locations C) The segment of DNA that must be copied D) A DNA polymerase enzyme that will catalyze the synthesis of a complementary strand of...
Why are we treating our purified PCR products with a DNA polymerase before adding them to...
Why are we treating our purified PCR products with a DNA polymerase before adding them to the ligation reaction? and What is the purpose of ATP in the ligation reaction? Group of answer choices -It provides energy to the ligase to catalyze a peptide bond -It provides energy to the ligase to catalyze a phosphodiester bond -It provides energy to the ligase to cut the DNA -It provides energy to the ligase to unwind the DNA
SELLUN 9. Contrast the functions of DNA polymerase III and DNA polymerase I. 10. Why do are the start points of DNA replication in eukaryotic and prokaryotic organisms AT rich? 11. What is the start point of DNA replication called in E. coli? What is it called in humans? 12. In DNA replication in E. coli which enters the replication fork first, DnaA protein, or Helicase? 13. In eukaryotes, two proteins are involved in linking DNA replication to S phase...
Question 23 Short Answer Question 2. The enzyme DNA polymerase is used to synthesize DNA, and the enzyme RNA polymerase is used to synthesize RNA. Using the content discussed in BIO130, describe two additional differences in how these enzymes function (not including the bases used). (3 sentences maximum, 2 marks)
18. DNA polymerase III needs a to be present before it can begin copying DNA A. Promoter B. Phosphorylation Cascade C. RNA Primer D. Transcription Factor 19. This molecule is a monomer of a. RNA b. DNA c. ATP d. Protein 20. Which organelle often contains numerous ribosomes? a. Rough Endoplasmic Reticulum b. Smooth Endoplasmic Reticulum c. Golgi Apparatus d. Nucleus 21. What type of mutation would occur if CAU mutated to CAC? a. Missense b. Silent c. Major d....
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