Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 20, Problem 12CONQ
According to the double-strand break model, does gene conversion necessarily involve DNA mismatch repair? Explain.
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According to the double-strand break model, does gene conversionnecessarily involve DNA mismatch repair? Explain.
What two molecular mechanisms can result in gene conversion?Do both occur in the double-strand break model?
Two pathways, homologous recombination and nonhomologous end joining (NHEJ), can repair double-strandbreaks in DNA. If homologous recombination is an errorfree pathway whereas NHEJ is not always error free, whyis NHEJ used most of the time in eukaryotes?
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- In the scenario where a single strand break occurs in the DNA replication fork: a) What would happen if RecC failed to bind to the chi site? Explain briefly and draw out the step at which recombinational DNA repair would stall. b) What would happen if RecA failed to bind DNA? Explain briefly and draw out the step at which recombinational DNA repair would stall. c) Draw the resolved product of this Holliday junction if it's cleaved in the direction of the white triangles. Is the result a heteroplex or recombinant? A Strand Invasion Ⓒ Holliday Junction A Resolvearrow_forwardDiscuss the processes of conjugation, transformation (Griffith’s experiment), andtransduction. What is transposon gene?arrow_forwardWhat role does DNA methylation play in mismatch repair?arrow_forward
- In each of the illustrations below, a segment of a chromosome has two copies of a transposable element. In panel a, they are oriented in the same direction, whereas in panel b they are in opposite directions. A double strand break occurs in element A and is repaired by homologous recombination using element B as a repair template. For each case, what will the chromosome look like after homologous recombination occurs? Choose one of the five options below, 1-5.arrow_forwardIn recombinant chromosomes, where is gene conversion likely totake place: near the breakpoint or far away from the breakpoint?Explain.arrow_forwardIn a transformation experiment involving a wild type bacterial strain with a recipient strain with mutations in genes f, g, h and i pairs of genes were analyzed for co-transformation with the following results: Gene Pair Co-transformation g+ i+ f+ i+ yes no f+ h+ Уes f+ g+ no g+ h+ h+ i+ no уes What is the linear order of these genes relative to cach other?arrow_forward
- When the mismatch repair system detects a distortion in the DNA double helix due to a mismatch, what mechanism ensures that the base on the parental strand is preserved and the base on the recently replicated strand is corrected.arrow_forwardWith regard to the repair of double-strand breaks, what are the advantages and disadvantages of homologous recombination repair (HRR) versus nonhomologous end joining (NHEJ)?arrow_forwardIn genetic transformation, what is meant by the wordcompetence?arrow_forward
- Consider the following types of cells: F+, F-, Hfr, and F’ cells. Which of these four types of cells are capable of acting as a donor during conjugation? What genes does each cell that is capable of acting as a donor donate to the recipient cell?arrow_forwardWith regard to the repair of double-strand breaks, what are the advantages and disadvantages of homologous recombination repair versus nonhomologous end joining?arrow_forwardHow would this figure change if double-stranded DNA were incorporated into the donor cell’s chromosome?arrow_forward
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