In a population of frogs, individuals with green coloration are camouflaged on leaves and are less ikely to be eaten by predators. However, as the number of green frogs increases, predators learn to search for them more effectively, making it advantageous to be a less common color. What type of Selection is occurring in this scenario? Disruptive selection Positive frequency-dependent selection Stabilizing selection Negative frequency-dependent selection O Directional selection

In a population of frogs, individuals with green coloration are camouflaged on leaves and are less ikely to be eaten by predators. However, as the number of green frogs increases, predators learn to search for them more effectively, making it advantageous to be a less common color. What type of Selection is occurring in this scenario? Disruptive selection Positive frequency-dependent selection Stabilizing selection Negative frequency-dependent selection O Directional selection

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 3TYU: The MN blood group is of interest to population geneticists because (a) people with genotype MN...

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Stabilizing selection happens when O Large and small values of a trait are selected against Medium values of a trait are selected against Only large OR small values of a trait are selected against
If female rabbits prefer longer eared males, but shorter eared males are less likely to acquire life- threatening infections of the ear, what overall pattern of selection should be observed when these processes happen together? disruptive directional stabilizing O balancing
Using the concept of inclusive fitness (and kin selection), explain how altruistic behavior (e.g. where an individual protects for another, even at their own expense) can evolve by natural selection? Make sure to explain what inclusive fitness is. (remember the concentric circles on the slide)
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
Selection operates on a trait with a normal distribution. If after selection, the mean in the trait has not changed, but the frequency In the trait has increased at the extremes, of: O disruptive (or diversifying) selection O directional selection O stabilizing selection O frequency-dependent selection
The males of some bird species grow large talons on their legs to help them fight against other males for the opportunity to display their feathers on a certain branch. What phenomenon best describes the growth of larger and more effective talons? no selection at all balancing selection intrasexual selection O intersexual selection
Mark each statement as True/ False while describing frequency dependent, frequency independent and sexual selection. In negative frequency selection, rare phenotypes are selected against In positive frequency selection, the more common phenotype is selected for The long mane of the male lion which is not present in females is an example of sexual dimorphism An example of the handicap principle can be seen in the similar body forms of male and female birds such as the mourning dove The antlers seen in male antelope, caribou, and mountain goats are example of sexual dimorphism
What is the relationship between reproductive value and strength of selection? when reproductive value is high, selection is weak when reproductive value is high, selection is strong there is no relationship; it is constant
In a population of plants, individuals with medium-sized leaves have the highest survival and reproductive success because they can efficiently capture sunlight without losing too much water. Which type of selection is occurring in this scenario? Stabilizing selection Disruptive selection Frequency-dependent selection Directional selection
Two males are fighting for territory that will increase the probability of mating success. Which term best describes this activity? O Intrasexual selection Intersexual selection Artificial selection O Mutation
Which of the following statements about genetic fitness and/or selection is false? Group of answer choices Individuals with low fitness have greater selection coefficients Fitness involves both relative viability and reproductive success Individuals with high fitness have greater selection coefficients Selection against recessive alleles tends to be slower overall than dominant alleles because of the survival in heterozygotes
The males of some bird species grow large talons on their legs to help them fight against other males for the opportunity to display their feathers on a certain branch. What phenomenon best describes the growth of larger and more effective talons? O no selection at all (conforms to Hardy-Weinberg expectations) balancing selection intersexual selection O intrasexual selection