What is neutral evolution? A. When certain genes are present or absent in populations regardless of selection (they are not advantageous or disadvantageous). B. When certain genes are present or absent in populations due to sexual selection (they are selected for by the opposite sex). C. When certain genes are present or absent in populations due to natural selection (they are advantageous or disadvantageous). D. Neutral evolution does not exist.

What is neutral evolution? A. When certain genes are present or absent in populations regardless of selection (they are not advantageous or disadvantageous). B. When certain genes are present or absent in populations due to sexual selection (they are selected for by the opposite sex). C. When certain genes are present or absent in populations due to natural selection (they are advantageous or disadvantageous). D. Neutral evolution does not exist.

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 7RQ: In which of the following pairs do both evolutionary processes introduce new genetic variation into...

See similar textbooks

Similar questions

When taking the question, it would appear as: Consider global warming, a continual gradual increase in average temperatures. How might you expect this to affect natural selection? A.environmental changes are unpredictable, and natural selection is a random process, so it is difficult to predict outcome B.species from warmer climates are likely to expand their ranges into higher latitudes C.traits that increase reproductive success under warmer temperatures are likely to increase in frequency in a population D.the stress caused by higher temperatures will increase mutation rates
What is neutral evolution? A. Neutral evolution does not exist. B. When certain genes are present or absent in populations due to natural selection (they are advantageous or disadvantageous). C. When certain genes are present or absent in populations regardless of selection (they are not advantageous or disadvantageous). D. When certain genes are present or absent in populations due to sexual selection (they are selected for by the opposite sex).
When we take, say, 100 individuals of a species of beetle from the wild and place them in a new environment that is not so different that they are unable to thrive but different enough so that they are experiencing a new selective regime, say, a lower temperature, what typically happens? A - Sexual selection causes some larvae to be able to survive in the cooler temperatures and other individuals to be unable to survive because they need warmer temperatures. B - We are unable to measure phenotypic selection, presumably because we do not have much variation among individuals for how they handle temperature. C - The founder event assures us that the new population will be strictly representative of the source population (especially if we took all the 100 from the same location rather that from throughout the range of the species). D - The population evolves to be tolerant of the lower temperature; it can do this because of latent variation already in the 100 founding individuals. E -…
Apply the VIDA table to the evolution of sickle cell disease to justify whether it is an instance of evolution by natural selection. Answer the following questions. Is there variation in this trait in the population? How exactly does it vary? Is the trait at least partly inherited? Is there selection for this trait in a particular environment? (What is the selective pressure? And how does a trait give an advantage or disadvantage in that environment?) What is the evidence that this trait makes organisms better adapted to their environment?
Which evolutionary forces a. cause an increase in genetic variation both within and between populations? b. cause a decrease in genetic variation both within and between populations? c. cause an increase in genetic variation within populations but cause a decrease in genetic variation between populations?
Biologists 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.
Which of the following conclusions are MOST likely to be supported by genetic evidence? A. Some modern-day organisms did not exist in the past. B. Some organisms found in the fossil record do not currently exist. C. Environmental change affected the fitness of individuals differently based on their traits. D. Some disease-causing traits may remain in a population because their alleles provide an advantage to heterozygotes.
What is the difference between artificial selection (e.g., greyhounds that are bred for speed) and natural selection? a. In artificial selection, the genetic variation introduced into the population is limited, but in natural selection, it is not b. In artificial selection, the environment is the selective force, while in natural selection, humans are the selective force c. In natural selection, the environment is the selective force, while in artificial selection, humans are the selective force d. Unlike other species, dogs are not subject to natural selection e. Both A & C
in general, will natural selection result in an increase or decrease in variation? Why does this happen and how, in theory, will it affect evolution in the future
Which question below directly corresponds to whether Lamarck or Darwin are correct about their theories of the mechanisms of evolution? A.) Why don’t the shorter neck giraffes feed on grasses and lower vegetation? B.) How would the shorter necked giraffes in Lamarck’s theory survive to reproduce and pass on the “need” for longer necks if they were unable to reach food? C.) Why won’t the taller necked giraffes in Darwin’s theory provide assistance to the shorter giraffes since they are the same species? D.) Will the smaller giraffes be more adapted to hide from predators since they wouldn’t be visible from greater distances?
What is the difference between evolution, natural selection, and artificial selection? A. Evolution is a genetic change in a population over time which can occur through natural selection. Artificial selection is the differential reproduction of individuals in a population to promote the characteristics chosen by the breeder. B. Natural selection is the change of allele frequencies in a population over time. Evolution leads to differential survival and reproduction of individuals. Artificial selection has produced domesticated animals and plants. C. Evolution is a mechanism of artificial selection. Natural selection is a form of artificial selection in which nature selects the characteristics that are most beneficial to a species. D. Artificial selection is a mechanism of evolution and is the main process of domesticating animals and plants for human use. Natural selection is the same as evolution.
Do you think the human race is continuing to evolve in a Darwinian, genetic sense? Are the genes of our species changing? Do not just write "yes" or "no," but explain why you think so. In addition, include in your explanation of how the mechanisms of evolution, such as natural selection, would be at play.