2 2. A survey was conducted for a certain trait (the ability to roll tongue or inability to roll the tongue) in a population. The result shows that 215 of the respondents can roll their tongue and 85 cannot roll their tongue. The picture below shows a person rolling his tongue. Rolling the tongue into a tube shape is often described as a dominant trait. If the dominant allele is represented by R (can roll tongue) and r represents the recessive allele, calculate the phenotypic frequencies, allele frequencies, the expected numbers of the three genotypic classes and the expected numbers of the two phenotypic classes (assuming random mating). Using chi-square test, determine whether or not this population is in Hardy-Weinberg equilibrium. REMEMBER: Genotype Phenotype Can roll tongue Cannot roll tongue HWE term p2 and 2pq q2 RR and Rr rr

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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2. A survey was conducted for a certain trait (the ability to roll tongue or inability to roll the
tongue) in a population. The result shows that 215 of the respondents can roll their
tongue and 85 cannot roll their tongue. The picture below shows a person rolling his
tongue. Rolling the tongue into a tube shape is often described as a dominant trait.
If the dominant allele is represented by R (can roll tongue) and r
represents the recessive allele, calculate the phenotypic frequencies,
allele frequencies, the expected numbers of the three genotypic
classes and the expected numbers of the two phenotypic classes
(assuming random mating). Using chi-square test, determine whether
or not this population is in Hardy-Weinberg equilibrium.
REMEMBER:
Genotype
Phenotype
Can roll tongue
Cannot roll tongue
HWE term
p2 and 2pq
q2
RR and Rr
rr
Transcribed Image Text:2 2. A survey was conducted for a certain trait (the ability to roll tongue or inability to roll the tongue) in a population. The result shows that 215 of the respondents can roll their tongue and 85 cannot roll their tongue. The picture below shows a person rolling his tongue. Rolling the tongue into a tube shape is often described as a dominant trait. If the dominant allele is represented by R (can roll tongue) and r represents the recessive allele, calculate the phenotypic frequencies, allele frequencies, the expected numbers of the three genotypic classes and the expected numbers of the two phenotypic classes (assuming random mating). Using chi-square test, determine whether or not this population is in Hardy-Weinberg equilibrium. REMEMBER: Genotype Phenotype Can roll tongue Cannot roll tongue HWE term p2 and 2pq q2 RR and Rr rr
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