Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 19, Problem 13RQ
Which type of selection results in greater genetic variance in a population?
- stabilizing selection
- directional selection
- diversifying selection
- positive frequency-dependent selection
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In a population that had mice ranging in color from very light to very dark, which type of selection would result in a population of mostly dark mice?
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Chapter 19 Solutions
Biology 2e
Ch. 19 - Figure 19.2 In plants, violet flower color (V) is...Ch. 19 - Figure 19.4 Do you think genetic drift would...Ch. 19 - Figure 19.8 In recent years, factories have become...Ch. 19 - What is the difference between micro- and...Ch. 19 - Population genetics is the study of: how selective...Ch. 19 - Which of the following populations is not in...Ch. 19 - One of the original Amish colonies rose from a...Ch. 19 - When male lions reach sexual maturity, they leave...Ch. 19 - Which of the following evolutionary forces can...Ch. 19 - What is assortative mating? when individuals mate...
Ch. 19 - When closely related individuals mate with each...Ch. 19 - What is a cline? the slope of a mountain where a...Ch. 19 - Which type of selection results in greater genetic...Ch. 19 - When males and females of a population look or act...Ch. 19 - The good genes hypothesis is a theory that...Ch. 19 - Solve for the genetic structure of a population...Ch. 19 - Explain the Hardy-Weinberg principle of...Ch. 19 - Imagine you are trying to test whether a...Ch. 19 - Describe a situation in which a population would...Ch. 19 - Describe natural selection and give an example of...Ch. 19 - Explain what a cline is and provide examples.Ch. 19 - Give an example of a trait that may have evolved...Ch. 19 - List the ways in which evolution can affect...
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- What type of selection occurs when one extreme population phenotype is favored? Group of answer choices genetic drift directional stabilizing disruptivearrow_forwardBecca loves German Shepherds and wants to have one as a pet. She locates a breeder and agrees to purchase one of the puppies. Which type of selection occurs from this type of human intervention? directional selection stabilizing selection disruptive selection artificial selectionarrow_forwardIn the following form of selection, one extreme of a variable character is selected for: Directional Selection Stabilizing Selection Disruptive Selectionarrow_forward
- What must be present in a population for natural selection to act on? Abundant resources A large population size Genetic variationarrow_forwardWhich statement is accurate about natural selection? It is a biological process that prevents species from adapting to significant changes in their environments. It is a biological process that leads a population to have a widespread expression of an advantageous trait. It is a biological process that allows a population to have a competitive advantage in many environments. It is a biological process that causes certain traits to be expressed less with each subsequent generation.arrow_forwardWhich type of selection results in greater genetic variance in a population? a. stabilizing selection b. directional selection c. diversifying selection d. positive frequency-dependent selectionarrow_forward
- Which of the following contribute to keeping low-fitness alleles in our gene pool? Choose all that are correct Random mating Efficient selection against rare recessive disease-causing alleles New mutations Late age of onset of some diseases Inefficient selection against rare recessive disease-causing allelesarrow_forwardMisconception: Natural selection involves organisms trying to adapt.Correction:arrow_forwardWhich of these is NOT an assumption made by HWE? Group of answer choices Mating is random No adaptation Infinitely large population No natural selection No mutationarrow_forward
- Which of the following is true about natural selection? Group of answer choices it acts on individuals it typically does not involve changes in genotype frequencies in a population it involves individuals willfully changing their genotype and/or phenotype in order to become better matched to their environment and leave more offspring it is a random process it involves humans increasing the frequency of desirable traits in a species by selecting which individuals breedarrow_forwardWhich of these conditions should completely prevent the occurrence of natural selection in a population over time? Group of answer choices The population size is large All variation between individuals is due only to environmental factors The population lives in a habitat where there are no competing species present The environment is changing at a relatively slow ratearrow_forwardWhich type of selection is represented from a population of mice living in the forest where only dark colored fur survive? Disruptive Directional Stabalizingarrow_forward
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