Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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There are 60 dominant homozygotes, 100 heterozygotes, and 25 recessive homozygotes in a population. How many dominant alleles are in the population? How many recessive alleles are in the population? For these alleles, what would be the allele frequencies of both?
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Step 1: Introduction
In a populace, the distribution of alleles can give important insights into its hereditary diversity and evolutionary pressures. In this situation, we’re looking at a populace with dominant homozygotes, heterozygotes, and recessive homozygotes.
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- You have two types of garden gnomes in a population. The majority are travelers, but some are home-bodies. This trait appears to be controlled by a single gene, which displays normal Mendelian complete dominance. The dominant allele is traveler (T) and the recessive allele is home-body (t). The frequency of the dominant allele is 0.70. If this population is in Hardy-Weinberg equilibrium, what is the frequency of heterozygotes in the population? Explain how you arrived at your answer.arrow_forwardGiven a population with 0.45 homozygote dominant individuals, 0.15 heterozygotes and 0.4 homozygote recessive individuals, determine the total frequency of dominant alleles in the population. 0.52 0.45 0.6 0.15 0.4arrow_forwardThe recessive allele that causes Ellis– van Creveld syndrome when homozygous has a frequency of about 0.07 in the Amish population of Pennsylvania, although its frequency is only about 0.001 in the generalpopulation. How many persons out of one thousand in the Amish population would be expected to have the disease? How many out of one million in the general population?arrow_forward
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