Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 20.1, Problem 4COMQ
Which of the following mechanisms can cause gene conversion?
a. DNA mismatch repair
b. DNA gap repair
c. Resolution of a Holliday junction
d. Both a and b can result in gene conversion.
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Chapter 20 Solutions
Genetics: Analysis and Principles
Ch. 20.1 - 1. Homologous recombination refers to the exchange...Ch. 20.1 - During the molecular process of homologous...Ch. 20.1 - 3. A key difference between the original Holliday...Ch. 20.1 - Which of the following mechanisms can cause gene...Ch. 20.2 - 1. During site-specific recombination that occurs...Ch. 20.2 - Prob. 2COMQCh. 20.3 - Which of the following types of transposable...Ch. 20.3 - Prob. 2COMQCh. 20.3 - Prob. 3COMQCh. 20 - 1. Describe the similarities and differences...
Ch. 20 - Prob. 2CONQCh. 20 - 3. Which steps in the double-strand break model...Ch. 20 - Prob. 4CONQCh. 20 - Prob. 5CONQCh. 20 - Prob. 6CONQCh. 20 - Prob. 7CONQCh. 20 - 8. What is gene conversion?
Ch. 20 - Make a list of the differences between the...Ch. 20 - Prob. 10CONQCh. 20 - Prob. 11CONQCh. 20 - 12. According to the double-strand break model,...Ch. 20 - What type of DNA structure is recognized by RecG...Ch. 20 - Briefly describe three ways that antibody...Ch. 20 - 15. Describe the functions of the RAG1 and RAG2...Ch. 20 - According to the scenario shown in Figure 20.7,...Ch. 20 - Prob. 17CONQCh. 20 - Prob. 18CONQCh. 20 - 19. Why does transposition always produce direct...Ch. 20 - 20. Which types of TEs have the greatest potential...Ch. 20 - Prob. 21CONQCh. 20 - 22. Let’s suppose that a species of mosquito has...Ch. 20 - This chapter describes different types of TEs,...Ch. 20 - Prob. 24CONQCh. 20 - Prob. 25CONQCh. 20 - 26. What is the difference between an autonomous...Ch. 20 - 1. Briefly explain how McClintock determined that...Ch. 20 - The work of McClintock showed that the presence of...Ch. 20 - 3. In your own words, explain the term transposon...Ch. 20 - Prob. 4EQCh. 20 - 5. Gerald Rubin and Allan Spradling devised a...Ch. 20 - Make a list of the similarities and differences...Ch. 20 - Prob. 2QSDCCh. 20 - Prob. 3QSDC
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- In nucleotide excision repair in E. coli, the function of the UvrA/UvrB complex is toa. detect DNA damage.b. make cuts on both sides of the damage.c. remove the damaged piece of DNA.d. replace the damaged DNA with undamaged DNA.arrow_forwardWhich statement regarding transitions and transversions is TRUE? a) An adenine to guanine change is a transversion b) Transversions are more commonly found in nature that are transitions c) A cytosine to guanine change is a transition d) Transversions cause a distortion in the DNA double helixarrow_forwardDNA Repair Systems a. counteract spontaneous and induced mutations b. counteract induced mutations only c. counteract amino acid changes introduced by mutations d. prevent DNA damagearrow_forward
- Following a CRISPR mediated DNA double-strand break, how can the DNA be repaired by the cell? Choose all that apply. A. Base pairing between complementary sticky sides. B. Nonhomologous end joining. C. Homology directed repair. D. Crossing over between nonhomologous chromosomes.arrow_forwardNegative supercoiling may enhance activities like transcriptionand DNA replication because ita. allows the binding of proteins to the major groove.b. promotes DNA strand separation.c. makes the DNA more compact.d. causes all of the above.arrow_forwardA key difference between the original Holliday model and the double-strand break model is the way thata. the DNA strands are initially broken.b. branch migration occurs.c. a heteroduplex is formed.d. resolution occurs.arrow_forward
- What is the function of resolvase in recombination? a. It unwinds double-stranded DNA. b. It allows a single DNA strand to invade a DNA helix. c. It displaces one of the original DNA strands during branch migration. d. It cleaves the Holliday structure.arrow_forwardMatch the E. coli mismatch repair enzyme on the left with the appropriate function on the right. MutS MutH MutL a. facilitates the looping of the region of DNA to be replaced b. distinguish between parental and newly-synthesized DNA c. locates mismatches in the DNAarrow_forwardHow do we call the type of point mutation in which an A->U change occurs in the codon for the sixth amino acid in hemoglobin chain b? a) Inversion b) Transversion c) Transition d) Transaminationarrow_forward
- Which mechanism requires the ability to distinguish between newly synthesized and template strands of DNA? a. Nucleotide selection b. DNA proofreading c. Mismatch repair d. All of the abovearrow_forwardWhich type of mutation produces the same protein despite a change in the DNA? A. nonsense B. missense C. silent D. frameshiftarrow_forwardWhat is the role of Sodium Iodidee in DNA isolation? A. Solubilization of phospholipids B Precipitation of DNA C Destroy hydrogen bonding network in solvent D Precipitation of cel wall and cell membranearrow_forward
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