EBK CONCEPTS OF GENETICS
12th Edition
ISBN: 9780134818979
Author: Killian
Publisher: YUZU
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Chapter 11, Problem 15PDQ
List the proteins that unwind DNA during in vivo DNA synthesis. How do they function?
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Chapter 11 Solutions
EBK CONCEPTS OF GENETICS
Ch. 11 - In the Meselson-Stahl experiment, which of the...Ch. 11 - An alien organism was investigated. When DNA...Ch. 11 - Why might mutations in genes encoding telomerase...Ch. 11 - Although the brother is an immunologically matched...Ch. 11 - Prob. 3CSCh. 11 - HOW DOWE KNOW? In this chapter, we focused on how...Ch. 11 - CONCEPT QUESTION Review the Chapter Concepts list...Ch. 11 - Compare conservative, semiconservative, and...Ch. 11 - Describe the role of 15N in the MeselsonStahl...Ch. 11 - Predict the results of the experiment by Taylor,...
Ch. 11 - What are the requirements for in vitro synthesis...Ch. 11 - In Kornbergs initial experiments, it was rumored...Ch. 11 - How did Kornberg assess the fidelity of DNA...Ch. 11 - Which characteristics of DNA polymerase I raised...Ch. 11 - Kornberg showed that nucleotides are added to the...Ch. 11 - What was the significance of the polA1 mutation?Ch. 11 - Summarize and compare the properties of DNA...Ch. 11 - List and describe the function of the ten subunits...Ch. 11 - Distinguish between (a) unidirectional and...Ch. 11 - List the proteins that unwind DNA during in vivo...Ch. 11 - Define and indicate the significance of (a)...Ch. 11 - Outline the current model for DNA synthesis.Ch. 11 - Why is DNA synthesis expected to be more complex...Ch. 11 - Suppose that E. coli synthesizes DNA at a rate of...Ch. 11 - Several temperature-sensitive mutant strains of E....Ch. 11 - While many commonly used antibiotics interfere...Ch. 11 - Describe the end-replication problem in...Ch. 11 - Many of the gene products involved in DNA...Ch. 11 - In 1994, telomerase activity was discovered in...Ch. 11 - The genome of D. melanogaster consists of...Ch. 11 - Prob. 26ESPCh. 11 - DNA polymerases in all organisms add only 5...Ch. 11 - Assume that the sequence of bases shown below is...Ch. 11 - Reiji and Tuneko Okazaki conducted a now classic...Ch. 11 - Consider the drawing of a dinucleotide below. (a)...Ch. 11 - To gauge the fidelity of DNA synthesis, Arthur...
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- What is generated from the replication of DNA ? what method is used ? Describe the process. What are Okazaki fragments? What enzymes are used ?arrow_forwardTRUE OR FLASE a) DNA positively supercoils during replication and negatively supercoils in transcription. b) The proteins and other substances that bind to the DNA rely mostly on covalent interaction to deliver the effects on the DNA.arrow_forwardExplain how the lagging dna strand is copied during dna replication? What are the enzymes involved?arrow_forward
- a) How is the lagging strand made in DNA replication? Include important enzymes and structures. How is this different from the synthesis of the leading strand? How is the structure of mRNA suited to its function? How is the structure of tRNA suited to its function? How is the structure of the nucleus suited to its function for protein synthesis?arrow_forwardDescribe the discontinuous synthesis of the lagging strand in DNA replication.arrow_forwardDescribe the synthesis of the lagging strand of DNA. Describe the synthesis of the leading strand of DNA.arrow_forward
- Introduction: The enzyme deoxyribonuclease I (DNase I) is an endonuclease that hydrolyzes the phosphodiester bonds of the double-stranded DNA backbone to yield small oligonucleotide fragments. DNase I is used therapeutically to treat patients with cystic fibrosis (CF). The DNase I enzyme is inhaled into the lungs where it then acts upon the DNA contained in the viscous sputum secreted by the lungs in these patients. Hydrolysis of high molecular weight DNA to low molecular weight DNA in the sputum decreases its viscosity and improves lung function. Animal studies have shown that DNase I is also effective in treating the autoimmune disease systemic lupus erythematosus (SLE). In this disease, the DNA secreted into the serum provokes an immune response. DNase I prevents the immune response by degrading the DNA to smaller fragments that are not recognized by the immune system. Genentech, Inc., the company that produces the recombinant DNase I, was interested in improving the efficiency of…arrow_forwardIntroduction: The enzyme deoxyribonuclease I (DNase I) is an endonuclease that hydrolyzes the phosphodiester bonds of the double-stranded DNA backbone to yield small oligonucleotide fragments. DNase I is used therapeutically to treat patients with cystic fibrosis (CF). The DNase I enzyme is inhaled into the lungs where it then acts upon the DNA contained in the viscous sputum secreted by the lungs in these patients. Hydrolysis of high molecular weight DNA to low molecular weight DNA in the sputum decreases its viscosity and improves lung function. Animal studies have shown that DNase I is also effective in treating the autoimmune disease systemic lupus erythematosus (SLE). In this disease, the DNA secreted into the serum provokes an immune response. DNase I prevents the immune response by degrading the DNA to smaller fragments that are not recognized by the immune system. Genentech, Inc., the company that produces the recombinant DNase I, was interested in improving the efficiency of…arrow_forwardDNA-driven DNA synthesis forms hydrogen bonds with antisense bases. True or False?arrow_forward
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