EBK CONCEPTS OF GENETICS
12th Edition
ISBN: 9780134818979
Author: Killian
Publisher: YUZU
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Chapter 15, Problem 20PDQ
Summary Introduction
To determine: The ways in which improving of living conditions and medical care can affect human mutation rates, both neutral and deleterious.
Introduction: Mutations are changes in the genetic sequence f an organism that are influenced by physiological or natural factors. Mutation over many generations in single species can lead to evolution of that particular species according to the mutation inducing factors.
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Discuss three potential benefits and three possible harmful effects of genetic modifications on humans.
Your friend claims that all mutations are harmful to living things. Do you agree or disagree with this claim? Support your position with:
• a description of a genetic mutation and
• a scientific explanation of how mutations may affect an organism such as a strawberry or spinach plant.
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Is a random mutation more likely to be beneficial or harmful?Explain your answer.
Chapter 15 Solutions
EBK CONCEPTS OF GENETICS
Ch. 15 - If a point mutation occurs within a human egg cell...Ch. 15 - One of the most famous cases of an X-linked...Ch. 15 - The cancer drug melphalan is an alkylating agent...Ch. 15 - Geneticists often use the alkylating agent...Ch. 15 - Six months pregnant, an expectant mother had a...Ch. 15 - Six months pregnant, an expectant mother had a...Ch. 15 - HOW DO WE KNOW? In this chapter, we focused on how...Ch. 15 - CONCEPT QUESTION Review the Chapter Concepts list...Ch. 15 - What is a spontaneous mutation, and why are...Ch. 15 - Prob. 4PDQ
Ch. 15 - Prob. 5PDQCh. 15 - Why is a random mutation more likely to be...Ch. 15 - Most mutations in a diploid organism are...Ch. 15 - What is the difference between a silent mutation...Ch. 15 - Describe a tautomeric shift and how it may lead to...Ch. 15 - Contrast and compare the mutagenic effects of...Ch. 15 - Why are frameshift mutations likely to be more...Ch. 15 - Why are X rays more potent mutagens than UV...Ch. 15 - DNA damage brought on by a variety of natural and...Ch. 15 - Contrast the various types of DNA repair...Ch. 15 - Mammography is an accurate screening technique for...Ch. 15 - A significant number of mutations in the HBB gene...Ch. 15 - Describe how the Ames test screens for potential...Ch. 15 - Prob. 18PDQCh. 15 - Compare DNA transposons and retrotransposons. What...Ch. 15 - Prob. 20PDQCh. 15 - In maize, a Ds or Ac transposon can alter the...Ch. 15 - Prob. 22PDQCh. 15 - In a bacterial culture in which all cells are...Ch. 15 - Presented here are hypothetical findings from...Ch. 15 - Prob. 25ESPCh. 15 - Prob. 26ESPCh. 15 - What evidence indicates that mutations in human...Ch. 15 - Among Betazoids in the world of Star Trek, the...Ch. 15 - Skin cancer carries a lifetime risk nearly equal...Ch. 15 - It has been noted that most transposons in humans...Ch. 15 - Mutations in the IL2RG gene cause approximately 30...
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- Name three factors that can influence the mutation rates of human genes.arrow_forwardExplain the rationale behind the use of the “bag of worms” phenotype as a way to identify heterochronic mutations.arrow_forwardIdentify the following sources of induced mutations, all of which increase the rate of mutation in human body cells. Choose between physical mutagens and chemical mutagens for each). Radiation exposures from airport security and during high altitude air travel. Answer Ingredients such as toluene and dibutyl phthalate in nail polish. Answer Exposure to BPA by heating up food wrapped in plastic wraps in microwaves. Answer Obtaining a base tan at a tanning salon prior to a beach vacation. Answerarrow_forward
- Is mutation really necessary or can we live without it? Support your answer. make an essay type answer and examplesarrow_forwardTwo types of mutations discussed in this chapter are (1) nucleotide changes and (2) unstable genome regions that undergo dynamic changes. Describe each type of mutation.arrow_forwardAlthough it is well known that X-rays cause mutations, they are routinely used to diagnose medical problems, including potential tumors, broken bones, and dental cavities. Why is this done? What precautions need to be taken?arrow_forward
- The word mutation is generally considered to be negative. However, is there a positive side to mutations? Briefly explain your answer.arrow_forwardTwo types of mutations discussed in this chapter are nucleotide changes and unstable genome regions that undergo dynamic change. Describe each type of mutationarrow_forwardwhat type of mutation can be avoided when doing the following: 1. Eating healthy foods 2. avoiding too much sunlight and radiation from phones 3. no smoking 4. wearing proper equipments when dealing with chemicalsarrow_forward
- Discuss about temperature-sensitive mutationsarrow_forwardFill the Table with mutagenic agents and provide their type (physical, chemical, biological) and their classification based on their effect (teratogenic, carcinogenic, clastogenic, or non-specific), together with their modes of action. Mutagen Type of Mutagen Classification based on effect Action Cobalt Nickel Methylhydrazine Temozolomide Ethyl ethane sulfatearrow_forwardDescribe the mechanistic steps through which gene therapy might be used to cure a disease that is caused by mutations in "Gene D". A potential patient is reluctant to undergo this treatment, because they remember hearing about adverse incidents from gene therapy studies conducted decades ago. What relevant details might you tell them, in order to inform them on this topic?.arrow_forward
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