In the replica plate experiment, it shows that mutations are random. However, certain environmental stresses (such as high temperature, high salt, and low pH) can increase the mutation rate. QUESTIONS: Does increasing the mutation rate increase the probability that a cell will experience an adaptive mutation?

In the replica plate experiment, it shows that mutations are random. However, certain environmental stresses (such as high temperature, high salt, and low pH) can increase the mutation rate. QUESTIONS: Does increasing the mutation rate increase the probability that a cell will experience an adaptive mutation?

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Description: In the replica plate experiment, it shows that mutations are random. However, certain environmental stresses (such as high temperature, high salt, and low pH) can increase the mutation rate.QUESTIONS:Does increasing the mutation rate increase the pro

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter16: Reproductive Technology, Genetic Testing, And Gene Therapy

Section: Chapter Questions

Problem 14QP: Is gene transfer a form of eugenics? Is it advantageous to use gene transfer to eliminate some...

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In the replica plate experiment, it shows that mutations are random. However, certain environmental stresses (such as high temperature, high salt, and low pH) can increase the mutation rate. QUESTIONS: Does increasing the mutation rate increase the probability that an individual mutation will be adaptive?
Are gene mutations caused by selective pressures in the environment? In other words, do gene mutations arise in an organism out of need or want? Group of answer choices A. No, because gene mutations are not purely random. B. Yes, because gene mutations are not purely random. C. No, because gene mutations are purely random. D. Yes, because gene mutations are purely random.
Is gene transfer a form of eugenics? Is it advantageous to use gene transfer to eliminate some genetic disorders? Can this and other technology be used to influence the evolution of our species? Should there be guidelines for the use of genetic technology to control its application to human evolution? Who should create and enforce these guidelines?
Would the rate of deleterious or beneficial mutations be a good molecular clock? Why or why not?
Ethion is an insecticide that kills leaf-eating insects such as mites. A species of mite develops a mutation overtime that allows it to survive in the presence of ethion. Is this mutation an example of microevolution? Explainyour answer.
Point mutations, like the single-nucleotide substitution in human sickle-cell trait, illustrate which of the following evolutionary features? mutations are never detrimental and always advantageous, regardless of the environment mutations might be either advantageous or detrimental, depending on the environment mutations are always detrimental and never advantageous, regardless of the environment mutations are neither advantageous nor detrimental, regardless of the environment mutations are always both advantageous and detrimental, regardless of the environment
What the world looks like due to mutation?illustrate
Which of the following statements best describes the effect of mutations in DNA? A Mutations result in changes that can be positive, be negative, or have no consequences B Mutations result in changes that always have negative consequences C Mutations result in changes that cannot be detected unless it is revealed by genetic screening D Mutations result in changes that have no consequences
What is adaptive mutation
If mutations occur at random with respect to an organism’s needs, how does a species become more adapted to its environment over time?
Pesticides are chemicals that are often sprayed on crops to kill plant-eating insects, preventing damage to the crops. While pesticides are effective initially, many researchers claim that any single pesticide will see reduced effectiveness in as little as ten to fifteen years. Which of the following best supports the claim by scientists that the pesticides will eventually lose their effectiveness? The insects will build up a tolerance to the pesticides, and eventually the pesticide will not affect them. The pesticides will increase the mutation rate in the insects, resulting in higher genetic diversity and higher survival rate. Insects that are naturally resistant to the pesticide will survive and reproduce more than the insects that are sensitive to the pesticide. Insects will evolve to avoid any plant sprayed with pesticides to increase their chances of survival.
Which among the following statements is not true about mutations? * a.) It may either occur at the chromosomes or at the sequence of nucleic acids. b.) It is caused either by mutagens or through hereditary genes. c.) All mutations cause diseases and disorders in the developing organism. d.) All mutations causes a change in the structure or sequence of the genetic material.