Some people can taste the bitter compound phenylthiocarbamide while others cannot. This trait isgoverned by a single autosomal gene; the allele fortasting is completely dominant with respect to the allele for nontasting. Among 1707 Hawaiians tested forthe ability to taste, 1326 tasters were found. Assumingthat the population is at Hardy-Weinberg equilibriumfor this gene and that mating is purely random:a. What are the allele frequencies for the tasting alleleT [= (p)] and for the nontasting allele t [= (q)]?b. What are the genotype frequencies in the population?c. Of all the matings in the population, what proportion will be between two nontasters?d. Of all the matings in the population, what proportion will be between a taster and a nontaster?e. Of all the matings in the population, what proportion will be between a taster male and a nontasterfemale?f. What proportion of all of the progeny produced byall matings between a taster male and a nontasterfemale will be nontasters?g. Of all the matings in the population, what proportion will be between two tasters?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Some people can taste the bitter compound phenylthiocarbamide while others cannot. This trait is
governed by a single autosomal gene; the allele for
tasting is completely dominant with respect to the allele for nontasting. Among 1707 Hawaiians tested for
the ability to taste, 1326 tasters were found. Assuming
that the population is at Hardy-Weinberg equilibrium
for this gene and that mating is purely random:
a. What are the allele frequencies for the tasting allele
T [= (p)] and for the nontasting allele t [= (q)]?
b. What are the genotype frequencies in the population?
c. Of all the matings in the population, what proportion will be between two nontasters?
d. Of all the matings in the population, what proportion will be between a taster and a nontaster?
e. Of all the matings in the population, what proportion will be between a taster male and a nontaster
female?
f. What proportion of all of the progeny produced by
all matings between a taster male and a nontaster
female will be nontasters?
g. Of all the matings in the population, what proportion will be between two tasters?

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