BIO 102 General Biology II Updated Edition (Tidewater Community College)
3rd Edition
ISBN: 9781259614064
Author: Tidewater Community College
Publisher: MCG CUSTOM
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Question
Chapter 12.5, Problem 2MC
Summary Introduction
To determine:
The maintenance of harmful alleles by natural selection in a population.
Concept introduction:
Natural selection is a process which favors the organism which contains traits for the survival in a changing environment. These traits are passing through generation to generation, and the organisms who do not receive these traits are eliminated from the environment.
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Chapter 12 Solutions
BIO 102 General Biology II Updated Edition (Tidewater Community College)
Ch. 12.1 - What are two ways to define evolution?Ch. 12.1 - Prob. 2MCCh. 12.2 - How does the history of evolutionary thought...Ch. 12.2 - What did Darwin observe that led him to develop...Ch. 12.2 - How might artificial selection and natural...Ch. 12.2 - What is the modern evolutionary synthesis?Ch. 12.3 - Prob. 1MCCh. 12.3 - Prob. 2MCCh. 12.3 - How can natural selection favor different...Ch. 12.3 - Prob. 4MC
Ch. 12.3 - Prob. 5MCCh. 12.4 - Prob. 1MCCh. 12.4 - Prob. 2MCCh. 12.4 - Prob. 3MCCh. 12.4 - Prob. 4MCCh. 12.5 - Prob. 1MCCh. 12.5 - Prob. 2MCCh. 12.6 - Prob. 1MCCh. 12.6 - What is the difference between intrasexual...Ch. 12.7 - Prob. 1MCCh. 12.7 - Prob. 2MCCh. 12.7 - Prob. 3MCCh. 12.7 - Prob. 4MCCh. 12.8 - What hypothesis did Conover and Munch test?Ch. 12.8 - Prob. 2MCCh. 12 - Prob. 1MCQCh. 12 - Prob. 2MCQCh. 12 - Prob. 3MCQCh. 12 - Prob. 4MCQCh. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - Prob. 7MCQCh. 12 - Prob. 8MCQCh. 12 - Prob. 9MCQCh. 12 - How did James Hutton, Georges Cuvier,...Ch. 12 - Explain how understanding evolution is important...Ch. 12 - How does variation arise in an asexually...Ch. 12 - Prob. 4WIOCh. 12 - Prob. 5WIOCh. 12 - Explain how harmful recessive alleles can persist...Ch. 12 - Fraggles are mythical, mouselike creatures that...Ch. 12 - Prob. 8WIOCh. 12 - Prob. 9WIOCh. 12 - Prob. 10WIOCh. 12 - Add the terms genotype, phenotype, allele...Ch. 12 - Prob. 3PIT
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- Why do you think it is necessary for there to be variation in a population in order for evolution by natural selection to occur?arrow_forwardIn what way is diversity intrinsically valuable to a population? How is genotypic or phenotypic diversity maintained if natural selection reduces variation?arrow_forwardHow Disruptive selection is bidirectional ?arrow_forward
- What is sexual selection? How is sexual selection similar to and different from other forms of natural selection?arrow_forwardA mutation produces a new beneficial dominant allele. Which of the following statements is false when considering the rate of frequency change that will be observed for this allele in the population? a) The allele will initially be present in heterozygotes. b) It is less likely to reach frequency of 1.0 than if it had been recessive. c) Its frequency will increase slowly until homozygotes occur in the population. d) Individuals with this allele will express the favorable phenotype.arrow_forwardSo how can individual selection result in low reproductive rates or short life spans?arrow_forward
- Will a recessive allele that is lethal in the homozygous condition ever be completely removed from a larger population by natural selection?arrow_forwardMechanisms for the persistence of genetic variation in a population include:i) antagonistic selection, ii) overdominance, iii) heterosis, iv) inverse-frequency-dependent selection, and v) mutation-selection balance. Describe how mutation-selection balance can act to maintain genetic variation in a population.arrow_forwardWhy do recessive lethals persist in a population? Provide an example of a recessive lethal allele.arrow_forward
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