BIOLOGY:CONCEPTS+INV>CUSTOM<
18th Edition
ISBN: 9781307311655
Author: Hoefnagels
Publisher: MCG/CREATE
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Chapter 12, Problem 4MCQ
Summary Introduction
Introduction:
Charles Darwin gave the idea about natural selection. This is an essential process of evolution, but there are many more forces for change in evolution. Natural selection supports the allele that causes successful reproduction and selecting that allele instead of those alleles that do not, it results in the evolution of the population.
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Students have asked these similar questions
Which type of selection results in greater genetic variance in a population? a. stabilizing selection b. directional selection c. diversifying selection d. positive frequency-dependent selection
Alleles that increase resistance to disease are expected to increase in frequency in the population as a result of?
a. positive selection
b. negative selection
c. balancing selection
d. artificial selection
Which statement illustrates the connection between natural selection and overreproduction of a population?
a) populations vary in their inherited traits.
b) species produce more offspring than can survive in the environment.
c) individuals with inherited traits that promote survival tend to have more surviving offspring.
d) individuals with traits that do not enhance survival cannot reproduce.
Chapter 12 Solutions
BIOLOGY:CONCEPTS+INV>CUSTOM<
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 - South China tigers have two color patterns...Ch. 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 - What is the most accurate way to ex plain the...Ch. 12 - Prob. 4MCQCh. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - List and describe five mechanisms of evolutionCh. 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 - Write a paragraph that describes the connections...Ch. 12 - Explain how harmful recessive alleles can persist...Ch. 12 - Fraggles are mythical, mouselike creatures that...Ch. 12 - Prob. 8WIOCh. 12 - Jellyfish Lake, located on the Pacific island of...Ch. 12 - Prob. 10WIOCh. 12 - Review the Survey the Land scape figu re in th e...Ch. 12 - Describe a s ituation in which each of the five...Ch. 12 - Add the terms genotype, phenotype, allele...
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- Within a particular population, darkly colored rats are more likely to survive than more lightly colored individuals. This situation is likely to result in a. directional selection. b. stabilizing selection. c. disruptive selection. d. balancing selection.arrow_forwardWhich claim about natural selection is not true? A. Directional selection decreases genetic diversity within a population B. Balancing selection (heterozygote advantage) maintains genetic diversity within a population C. Negative Frequency-Dependent selection maintains genetic diversity within a population D. Natural Selection always has a greater evolutionary effect in small populations than it does in large populationsarrow_forwardWhich BEST describes how survival of the fittest relates to natural selection? A) Organisms with favorable traits will be naturally selected to pass their traits on to the next generation. B) Organisms with the lowest gene mutations will be naturally selected to pass their traits on to the next generation. C) Organisms with the most recessive genes will be naturally selected to pass their traits on to the next generation. D) Organisms living in a stable environment will be naturally selected to pass their traits on to the next generation.arrow_forward
- You are wandering in the Amazon rainforest, when you hear the loud call of an animal. You walk in the direction of the sound, and discover that it is coming from an adorable species of frog. a) What type of adaptation is being displayed by this species of frog? b) Describe how selection could work FOR and AGAINST this adaptation.arrow_forwardA population occupies heterogeneous environments in which the fitness of some genotypes is higher in one environment and the fitness of other individuals is higher in another environment. This situation is likely to result in a. directional selection. b. stabilizing selection. c. disruptive selection. d. balancing selection.arrow_forwardA gene exists in two alleles, and the heterozygote has the highest fitness. This situation is likely to result in a. directional selection. c. disruptive selection. b. stabilizing selection. d. balancing selection.arrow_forward
- How does genetic flow affect the recipient population? A:Increases genetic variability B:Exacerbates the effect of natural selection C:Exacerbates the effect of genetic drift D:Increases random matingarrow_forwardAssume you are studying a population of hummingbirds. You discover that the smallest hummingbirds can't keep their eggs warm and those eggs tend to fail. You also discover the largest hummingbirds tend to accidentally crush their eggs, so those eggs fail. The medium-size hummingbirds therefore have the highest fitness. What type of selection would this result in? a. Directional selection b. Sexual selection c. Disruptive selection d. Stabilizing selectionarrow_forwardBiologists sometimes say that “natural selection depends on the specific environment where a species lives.” What does this statement mean? A) A) If populations of a species are in different environments, traits that individuals need to meet their needs in each environment will appear. B) Traits can be helpful or harmful. If populations of a species are in different environments, some traits that are helpful in one environment might be harmful in another environment. C) Traits are always either helpful or harmful, and the environment of a population doesn’t matter. If populations of a species are in different environments, the same traits will always be helpful. D) Species were formed to perfectly match their environment. The traits of individuals in a species depend on the specific environment in which they were created.arrow_forward
- Birds with average-sized wings survive storms better than those with longer wings or shorter wings. This illustrates _____. a directional selection b disruptive selection c the bottleneck effect d stabilizing selectionarrow_forwardWith stronger natural selection, was the more beneficial allele lost from these small populations?a) It was lost very frequently, and the strength of natural selection did not make any difference.b) It was never lost.c) It was lost a few times, but not very often, and it was lost less frequently under strong selection.d) It was lost a few times, and it was lost more frequently under strong selection.arrow_forwardJohn wants a dog with short hair. To do this, he breeds two dogs, both with short hair. This is called A. Natural Selection B. Artificial Selection C. Genetic Modification D. Random Chancearrow_forward
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