Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 13, Problem 8SQ
Summary Introduction
To explain:
How bottleneck effect and founder effect lead to genetic drift.
Introduction:
Genetic drift represents the change in the gene pool of a population occurred by chance. The changes in the gene pool occur due to mutation in the genetic material. The variations in the genetic material are the main cause of evolutionary changes occurring in a population. Variation helps a population to gain an advantage over other populations.
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Relate the process of genetic drift to genetic bottlenecks and the founder effect, using examples.
What type of event could cause each type of genetic drift (founder effect and bottleneck effect)?
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How do you get the genotype frequency? Give formula and cite example.
Chapter 13 Solutions
Campbell Essential Biology (7th Edition)
Ch. 13 - Place these levels of classification in order from...Ch. 13 - Which of the following is a true statement about...Ch. 13 - How did the insights of Lyell and other geologists...Ch. 13 - In a population with two alleles for a particular...Ch. 13 - Define fitness from an evolutionary perspective.Ch. 13 - Prob. 6SQCh. 13 - As a mechanism of evolution, natural selection can...Ch. 13 - Prob. 8SQCh. 13 - In a particular bird species, individuis with...Ch. 13 - Prob. 10IMT
Ch. 13 - Prob. 11IMTCh. 13 - For each statement, identify which major theme is...Ch. 13 - Interpreting Data A population of snails has...Ch. 13 - Imagine that the presence or absence of stripes or...Ch. 13 - To what extent are people in a technological...Ch. 13 - What plants and animals have you seen near your...
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- 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_forwardWhat is happening at the bottleneck? Describe the effect of genetic drift during the bottleneck.arrow_forwardCompare and contrast directional selection and disruptive selection, and provide an example of each.arrow_forward
- What long-term effects can gene flow have on any two populations that are exchanging genes? View keyboard shortcutsarrow_forwardCite instances in the natural setting where the phenomenon of genetic driftarrow_forwardSuppose that a population is at equilibrium between mutation and selection for a deleterious recessive allele, where s = 0.5 and μ = 10−5. What is the equilibrium frequency of the allele? What is the selection cost?arrow_forward
- Describe How is selective breeding similar and different from natural selection?arrow_forwardWhich of the following is the LEAST CONVINCING argument against micromutationism? Advantageous mutations of large effect are more resistant to loss by drift than advantageous mutations of small effect. Mutations of small effect are more likely to be advantageous than mutations of large effect. Empirical studies suggest that some adaptive traits are governed at least in part by loci of large phenotypic effect.arrow_forwardUnderstand how the Hardy-Weinberg principle is used to explain the process of microevolution.arrow_forward
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Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY