Life: The Science of Biology
Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 20.3, Problem 3R
Summary Introduction

To review:

The possible reason for the deviation of the genotypic or phenotypic frequencies from the Hardy–Weinberg’s law in the given population of toads.

Introduction:

The Hardy–Weinberg principle suggests that the genotypic frequency remains constant unless the population is acted upon by the evolutionary forces. Based on the principle, there are two equations, which can be used to calculate the genotypic and the allele frequency in a population. These equations are based on the Hardy–Weinberg equilibrium.

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I'm confused about how I would figure out these two questions as I don't really understand the difference or where to start. What would genotypic frequencies be for Wildrose at pt-8 if it were in equilibrium? and How many individuals (to 2 decimal places) of each genotype would there be from Wildrose at pt-8 if it were in equilibrium?
The next several questions refer to the data given in this problem. You sample a population of leafhoppers and genotype 250 individuals at a polymorphic locus with two alleles. You obtain the following numbers: AA = 68 individuals Aa = 54 individuals aa = 128 individuals what is the expected frequency with the aa genotype if the population is in hardy weinberg equilibrium (you may round your answer to the nearest whole number) Which of the following statements is supported, based on the data? (Check all that apply) 1.) The population is in Hardy-Weinberg equilibrium. 2.) The population is not in Hardy-Weinberg equilibrium, and the cause may be inbreeding. 3.) The population is not in Hardy-Weinberg equilibrium, and the cause may be selection favoring heterozygotes. 4.) The population is not in Hardy-Weinberg equibrium, and the cause may be population structure (in other words, the population we sampled actually may actually consist of two or more subpopulations that are at least…
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