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Natural selection requires all of the following except?

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter19: Population Genetics And Human Evolution

Section: Chapter Questions

Problem 21QP

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Natural selection requires all of the following except?

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Natural Selection Affects the Frequency of Genetic Disorders Will a recessive allele that is lethal in the homozygous condition ever be completely removed from a large population by natural selection?
What is meant by biological evolution?
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?
Which of the following is not true of natural selection? (a) natural selection acts to preserve favorable traits and eliminate unfavorable traits (b) the offspring of individuals that are better adapted to the environment will make up a larger proportion of the next generation (c) natural selection directs the course of evolution by preserving the traits acquired during an individuals lifetime (d) natural selection acts on a populations genetic variability, which arises through mutation (e) natural selection may result in changes in allele frequencies in a population
Discuss the significance of the HardyWeinberg principle as it relates to evolution and list the five conditions required for genetic equilibrium.
Measuring Genetic Diversity in Human Populations The theory of natural selection has been summarized popularly as survival of the fittest. Is this an accurate description of natural selection? Why or why not?
Why are only inherited variations important in the evolutionary process? Explain your answer.
EVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural selection chooses from among the individuals in a population those most suited to current environmental conditions. It does not guarantee survival under future conditions. (b) Individuals do not evolve, but populations do. (c) The organisms that exist today do so because their ancestors had traits that allowed them and their offspring to thrive. (d) At the molecular level, evolution can take place by the replacement of one nucleotide by another. (e) Evolution is said to have occurred within a population when measurable genetic changes are detected.
Genetics and Social Behavior Of the following findings, which does not support the idea that alcoholism is genetic? a. Some strains of mice select alcohol over water 75% of the time, whereas others shun alcohol. b. The concordance value is 55% for MZ twins and 28% for DZ twins. c. Biological sons of alcoholic men who have been adopted have a rate of alcoholism more like that of their adoptive fathers. d. There is a 20% to 25% risk of alcoholism in the sons of alcoholic men. e. None of these.
Which of the following is not part of Darwins mechanism of evolution? (a) differential reproductive success (b) variation in a population (c) inheritance of acquired (nongenetic) traits (d) overproduction of offspring (e) struggle for existence
The good genes hypothesis is a theory that explains what? why more fit individuals are more likely to have more offspring why alleles that confer beneficial traits or behaviors are selected for by natural selection why some deleterious mutations are maintained in the population why individuals of one sex develop impressive ornamental traits
Which of the following situations will lead to natural selection? The seeds of two plants land near each other and one grows larger than the other Two types of fish eat the same kind of food, and one is better able to gather food than the other Male lions compete for the right to mate with females, with only one possible winner all of the above