You are studying a genetically modified mouse that produces electric blue fur, which is not a fur color observed in nature. You notice that females prefer males that have the blue fur when given a choice test for mates. This result supports which of the following models of sexual selection? a. Sexual selection for indirect benefits b. Sexual selection for direct benefits c. Sexual selection for arbitrary traits d. None of the above

You are studying a genetically modified mouse that produces electric blue fur, which is not a fur color observed in nature. You notice that females prefer males that have the blue fur when given a choice test for mates. This result supports which of the following models of sexual selection? a. Sexual selection for indirect benefits b. Sexual selection for direct benefits c. Sexual selection for arbitrary traits d. None of the above

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter11: Evolution And Its Processes

Section: Chapter Questions

Problem 3RQ: Which of the following situations will lead to natural selection? a. The seeds of two plants land...

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Which of the following is the best description of sexual selection? a. Sexual selection is the differential reproductive success due to variation in acquiring immunity from mates. b. Sexual selection is the differential reproductive success due to variation in survival from social selection. c. Sexual selection is the differential reproductive success due to variation in acquiring mates or mating success. d. Sexual selection is the differential survival success due to variation in avoiding mates or mating success.
You are studying a species of beetle known as a Flumbodoodle Beetle. The beetle has long spikes on its shell to defend itself from potential predators. You are interested in studying evolution in this beetle. Which of the following studies do you not need to conduct to determine if the long spike trait can evolve by natural selection. a. A study that determines whether beetles with longer spikes survive and reproduce better than beetles with shorter spikes. b. A study that measures the spike length variation across multiple individuals in a population. c. A study where you measure the spike length on the parents and a study where you measure the spike length on the offspring. d. A study that determines whether these spikes on the beetle are also used in mate choice contexts.
What is the selective factor, or selective environment, in the case of sexual selection, that allows individuals with some genotypes to leave more offspring than individuals of other genotypes? Choose the best answer from the available options. Group of answer choices A-Sickle-cell disease B- AIDS C-Human preference D-Malaria E-Female preference
Which of the following situations will lead to natural selection? a. The seeds of two plants land near each other and one grows larger than the other. b. Two types of fish eat the same kind of food, and one is better able to gather food than the other. c. Male lions compete for the right to mate with females, with only one possible winner. d. all of the above
Sexual selection tends to cause bigger size,more elaborate weaponry, or brighter colors in males. Is this an example of stabilizing,directional, or disruptive selection?
This model shows the process of natural selection on rabbits demonstrating variation in fur color over several generations. Using the model, what most likely led to the loss of white furred rabbits in the population? A) the white rabbits did not reproduce fast enough to survive B) white was a recessive trait and therefore not passed on to any offspring C) the white fur was a favorable trait but was never prevalent in the population D) the rabbits with white fur had less camouflage in the environment and were more easily preyed on by predators
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.
Would you expect sexual selection to increase or decrease adaptation of a population to its environment? A. Consider male-male competition first. B. Then consider the different mechanism for the evolution of female preferences and their implications for adaptation to the environment? Explain your thinking.
Which statement best summarizes why genetic drift tends to impact small populations more than large populations? A. Small populations have a heterozygote advantage because heterozygotes are more common than homozygotes. B. Small populations have a smaller gene pool, so random changes influence them more. C. Small populations have a relatively large gene pool, so the founder effect stabilizes their alleles.D. Small populations tend to experience directional selection, making one phenotype more common.
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
Assume 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 selection
What are two reasons why a selection limit is reached in which artificial selection no longer has an effect?