Types of Selection Match each situation to the type of selection most likely to occur. NOTE: If you want to change your selection, you'll need to delete the one you already chose. After you delete it, the list of choices will pop back up and you can make a different choice. Rabbits with medium colored fur blend into the background, but very light or very dark fur colors are easier for predators to spot. disruptive selection Drab colored guppies are less likely to be eaten by predators, but brightly colored males are preferred by females. sexual selection Butterflies with small wings can easily find hiding places to escape predators. Butterflies with large wings can fly higher and faster to escape predators. directional selection stabilizing selection A species of rodent is vulnerable to cold weather when small, but able to keep warm when large.

Types of Selection Match each situation to the type of selection most likely to occur. NOTE: If you want to change your selection, you'll need to delete the one you already chose. After you delete it, the list of choices will pop back up and you can make a different choice. Rabbits with medium colored fur blend into the background, but very light or very dark fur colors are easier for predators to spot. disruptive selection Drab colored guppies are less likely to be eaten by predators, but brightly colored males are preferred by females. sexual selection Butterflies with small wings can easily find hiding places to escape predators. Butterflies with large wings can fly higher and faster to escape predators. directional selection stabilizing selection A species of rodent is vulnerable to cold weather when small, but able to keep warm when large.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 10TYU: Which of the following is not true of natural selection? (a) natural selection acts to preserve...

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Which of the following contribute to keeping low-fitness alleles in our gene pool? Choose all that are correct a) Random mating b) New mutations c) Inefficient selection against rare recessive disease-causing alleles d) Late age of onset of some diseases e) Efficient selection against rare recessive disease-causing alleles
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Under which of the following scenarios would variation be maintained? Selection acting on a dominant high fitness allele Selection acting on a recessive high fitness allele Selection favoring heterozygotes Selection acting against heterozygotes None of the above
You are working on an undergraduate project, studying an insect species. A recent study showed that the pigmentation pattern used for camouflage is made by an enzyme K. However, it has been shown that, when compared to the Kk individuals, the KK homozygotes would have a higher chance of dying from pigment overdose before growing up, while the kk individuals can easily fall to predation before becoming adults. In fact, when compared to the Kk individuals, the estimated selection coefficients for KK and kk are 0.25 and 0.5, respectively. You are interested in what would happen to these alleles. At present, you have conducted a population survey and have 1000 larvae in your collection. Among them, 360 are KK, 480 Kkand 160 kk. 1)How many larvae would survive to adulthood a) 170 b) 414 c)583 d)750 e)830 2)Following up the previous question, what would be the KK genotype frequency at the adult? a) 0.090 b) 0.270 c) 0.325 d) 0.360 e) 0.529 3)Following up on the previous question,…
Explain frequency-dependent selection in your own words.
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The relative fitnesses of A1A1, A1A2, and A2A2 are 0.5,0.8 and 1 respectively. What is the expected result of natural selection in this selection? a.) A1 will increase and A2 will decrease. b.) A2 will increase and A1 will decrease. c. Both alleles will decrease in frequency d.) A stable equilibrium will be achieved in which both alleles are maintained e.) An unstable equilibrium will exist and the outcome depends on the allele frequencies.
Which 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.
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