BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 19, Problem 2VCQ
Figure 19.4 Do you think genetic drift would happen more quickly on an island or on the mainland?
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What historical, social, religious, cultural, and economic factors promote genetic drift in humans? Can you think of some specific human groups in which genetic drift is likely to have occurred?
Below are examples of genetic drift. What similarities do you see in the examples?
-Many individuals are killed due to a disease that only attacks those with blue eyes, causing blue eyes to become rarer in the area.
-An airplane crash introduces the white heron, which loves spotted mackerel, into a population of spotted and unspotted mackerel. Over time, fewer mackerel are born with spots
-A man steps on a group of beetles, randomly killing most of the green ones but leaving most of the brown ones alive, resulting in fewer green beetles being produced in the population.
-A wildflower population consisting of blue, purple, and pink flowers is subjected to a mudslide that kills most of the blue on es. As time progresses, blue flowers eventually die out, leaving only purple and pink wildflower
Do you think humans can control the effect of genetic drift? Why or why not?
Chapter 19 Solutions
BIOLOGY 2E
Ch. 19 - Figure 19.2 In plants, violet flower color (V) is...Ch. 19 - Figure 19.4 Do you think genetic drift would...Ch. 19 - Figure 19.8 In recent years, factories have become...Ch. 19 - What is the difference between micro- and...Ch. 19 - Population genetics is the study of: how selective...Ch. 19 - Which of the following populations is not in...Ch. 19 - One of the original Amish colonies rose from a...Ch. 19 - When male lions reach sexual maturity, they leave...Ch. 19 - Which of the following evolutionary forces can...Ch. 19 - What is assortative mating? when individuals mate...
Ch. 19 - When closely related individuals mate with each...Ch. 19 - What is a cline? the slope of a mountain where a...Ch. 19 - Which type of selection results in greater genetic...Ch. 19 - When males and females of a population look or act...Ch. 19 - The good genes hypothesis is a theory that...Ch. 19 - Solve for the genetic structure of a population...Ch. 19 - Explain the Hardy-Weinberg principle of...Ch. 19 - Imagine you are trying to test whether a...Ch. 19 - Describe a situation in which a population would...Ch. 19 - Describe natural selection and give an example of...Ch. 19 - Explain what a cline is and provide examples.Ch. 19 - Give an example of a trait that may have evolved...Ch. 19 - List the ways in which evolution can affect...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Why is genetic drift more significant in small populations? Why does it take longer for genetic drift to cause allele fixation in large populations than in small ones?arrow_forwardDo you think genetic drift would happen more quickly on an island or on the mainland? Justify your answer in a paragraph form (10 sentences)arrow_forwardWhy the impact of genetic drift is more significant in smaller population?arrow_forward
- Define genetic drift and give three ways in which it can arise. Whateffect does genetic drift have on a population?arrow_forwardExplain What is genetic drift? What is a founder? Are these important in large populations or in small ones? How are these phenomena important when we create national parks and preserves to protect endangered species?arrow_forwardImagine you raise goldfish as a pet dealer. You have over 10,000 fish in one large tank but, due to an electrical problem, 95% of the fish perish one night. The remaining 5% are left to breed and repopulate, passing their genes and traits on to future generations. What type of genetic drift would this be considered?arrow_forward
- The bottleneck effect and the founder effect are two processes that cause genetic drift to occur. Which was modeled in the second part of this activity? How do you know?arrow_forwardWhy is population level genetic variation important for evolution and what causes genetic variation ? How do we detect if evolution is occurring ?arrow_forwardGenetic drift is often described as a “chance event.” Give other examples of chance events that could cause a genetic bottleneck.arrow_forward
- Which of the following is an example of genetic drift? peter Parker gets irradiated and turns into spider man as global temperatures increase alleles that confer resistance to heat become more prevalent the American bison was hunted almost to extinction very quickly and only a few remained 5% of your neighbourhood moves to Canadaarrow_forwardGenetic drift can produce large changes in allele frequencies in a short time period. true or falsearrow_forwardWhy is mutation important to evolution if it is the microevolutionary force that generally has the smallest effect on allele frequencies?arrow_forward
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