Essentials of Genetics, Books a la Carte Plus Mastering Genetics with eText -- Access Card Package (9th Edition)
9th Edition
ISBN: 9780134319070
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 14, Problem 13PDQ
Contrast the various types of DNA repair mechanisms known to counteract the effects of UV radiation. What is the role of visible light in repairing UV-induced mutations?
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Contrast the various types of DNA repair mechanisms known to counteract the effects of UV radiation. What is the role of visible light in repairing UV-induced mutations?
Which of these two changes is more difficult for DNA repair enzymes to fix correctly? Explain why.
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Chapter 14 Solutions
Essentials of Genetics, Books a la Carte Plus Mastering Genetics with eText -- Access Card Package (9th Edition)
Ch. 14 - CASE STUDY| Genetic dwarfism Seven months...Ch. 14 -
CASE STUDY | Genetic dwarfism
Seven months...Ch. 14 -
CASE STUDY| Genetic dwarfism
Seven months...Ch. 14 - CASE STUDY | Genetic dwarfism Seven months...Ch. 14 -
HOW DO WE KNOW?
1. In this chapter, we focused on...Ch. 14 - Review the Chapter Concepts list on page 257....Ch. 14 - What is a spontaneous mutation, and why are...Ch. 14 -
4. Why would a mutation in a somatic cell of a...Ch. 14 - Why is a random mutation more likely to be...Ch. 14 - Most mutations in a diploid organism are...
Ch. 14 - What is meant by a conditional mutation?Ch. 14 -
8. Describe a tautomeric shift and how it may...Ch. 14 - Contrast and compare the mutagenic effects of...Ch. 14 - Why are frameshift mutations likely to be more...Ch. 14 - Why are X rays more potent mutagens than UV...Ch. 14 -
12. DNA damage brought on by a variety of natural...Ch. 14 - Contrast the various types of DNA repair...Ch. 14 -
14. Mammography is an accurate screening...Ch. 14 - Describe how the Ames test screens for potential...Ch. 14 - What genetic defects result in the disorder...Ch. 14 - In a bacterial culture in which all cells are...Ch. 14 - Human equivalents of bacterial DNA mismatch repair...Ch. 14 - A number of different types of mutations in the...Ch. 14 -
20. Some mutations that lead to diseases such as...Ch. 14 - In maize, a Ds or Ac transposon can cause...Ch. 14 -
22. Presented here are hypothetical findings from...Ch. 14 -
23. Cystic fibrosis (CF) is a severe autosomal...Ch. 14 -
24. Electrophilic oxidants are known to create...Ch. 14 - Skin cancer carries a lifetime risk nearly equal...Ch. 14 -
26. The initial discovery of IS elements in...Ch. 14 -
27. It is estimated that about 0.2 percent of...Ch. 14 -
28. It has been noted that most transposons in...Ch. 14 - Two related forms of muscular dystrophy–Duchenne...
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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
- Describe the role of mismatch repair (MMR) in DNA repair. Why can mutations in MMR increase the risk of human cancer?arrow_forwardExplain why base excision repair, nucleotide excision repair, and mismatch repair—which all require nucleases to excise damaged DNA—require DNA ligase.arrow_forwardHow do we know that DNA repair mechanisms detect and correct the majority of spontaneous and induced mutations?arrow_forward
- Please explain one type of “DNA repair” mechanism (what is it, when is it used, how does it work).arrow_forwardWhat are the essential differences between base excision repair and nucleotide excision repair and what types of DNA damage are they dedicated to repairing?arrow_forwardWhat is an advantage and a disadvantage of this repair system?arrow_forward
- Explain why the absorption of UV light by double-stranded DNA increases (the hyperchromic effect) when the DNA is denatured.arrow_forwardWhat are the steps of Homologous recombination during DNA repair?arrow_forwardWhich repair pathway recognizes DNA damage duringtranscription? What happens if the damage is notrepaired?arrow_forward
- DNA repair enzymes preferentially repair mis- matched bases on the newly synthesized DNA strand, using the old DNA strand as a template. If mismatches were instead repaired without regard for which strand served as template, would mismatch repair reduce repli- cation errors? Would such a mismatch repair system result in fewer mutations, more mutations, or the same number of mutations as there would have been without any repair at all? Explain your answers.arrow_forwardWhat are DNA excision-repair systems?arrow_forwardWhy is DNA microarray an important tool and explain How is DNA microarray used in detecting cancer?arrow_forward
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