Rehpogs are mythical creatures. They are small and not very smart. Rehpogs live on the ground in a flat, warm habitat. Their fur texture and color ranges from thick purple fur to thin pink fur, depending on allele distribution. The dominant fur allele (R) codes for thick purple fur. The recessive allele (r) codes for thin pink fur. REMEMBER: a phenotype (fur color) is the physical expression of a genotype (two- letter code for the alleles present in that individual). Each individual has two alleles for fur color: RR genotype is homozygous dominant = Thick purple fur phenotype Rr genotype is heterozygous = Thick purple fur (because of the presence of one dominant allele) rr genotype is homozygous recessive Thin pink fur (because of the absence of a dominant allele) = For the purposes of this experiment, Rehpogs mate once per year and produce two offspring each year. Rehpogs are monogamous, faithful and fertile. Part I A small population of genetically diverse Rehpogs (equal numbers of purple fur and pink fur male and female adult individuals) moved from their warm habitat to a cold climate. The cold environment exerts selective pressure. Sadly, the Rehpogs with thin pink fur (homozygous recessive) freeze during cold weather. Field studies show that 50% of the thin pink fur individuals (homozygous recessive) die every winter. In other words, 50% of the individuals with homozygous recessive genotypes are removed from this population every winter. What happens to the frequency of the dominant allele in this population over five years? What happens to the frequency of the recessive allele in this population over five years? Natural Selection does not always eliminate the recessive allele from a population, even after many generations. How is this possible?
Rehpogs are mythical creatures. They are small and not very smart. Rehpogs live on the ground in a flat, warm habitat. Their fur texture and color ranges from thick purple fur to thin pink fur, depending on allele distribution. The dominant fur allele (R) codes for thick purple fur. The recessive allele (r) codes for thin pink fur. REMEMBER: a phenotype (fur color) is the physical expression of a genotype (two- letter code for the alleles present in that individual). Each individual has two alleles for fur color: RR genotype is homozygous dominant = Thick purple fur phenotype Rr genotype is heterozygous = Thick purple fur (because of the presence of one dominant allele) rr genotype is homozygous recessive Thin pink fur (because of the absence of a dominant allele) = For the purposes of this experiment, Rehpogs mate once per year and produce two offspring each year. Rehpogs are monogamous, faithful and fertile. Part I A small population of genetically diverse Rehpogs (equal numbers of purple fur and pink fur male and female adult individuals) moved from their warm habitat to a cold climate. The cold environment exerts selective pressure. Sadly, the Rehpogs with thin pink fur (homozygous recessive) freeze during cold weather. Field studies show that 50% of the thin pink fur individuals (homozygous recessive) die every winter. In other words, 50% of the individuals with homozygous recessive genotypes are removed from this population every winter. What happens to the frequency of the dominant allele in this population over five years? What happens to the frequency of the recessive allele in this population over five years? Natural Selection does not always eliminate the recessive allele from a population, even after many generations. How is this possible?
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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Rehpogs are mythical creatures. They are small and not very smart. Rehpogs live on the ground in a flat,
warm habitat. Their fur texture and color ranges from thick purple fur to thin pink fur, depending on
allele distribution. The dominant fur allele (R) codes for thick purple fur. The recessive allele (r) codes
for thin pink fur. REMEMBER: a phenotype (fur color) is the physical expression of a genotype (two-
letter code for the alleles present in that individual). Each individual has two alleles for fur color:
RR genotype is homozygous dominant - Thick purple fur phenotype
Rr genotype is heterozygous = Thick purple fur (because of the presence of one dominant allele)
rr genotype is homozygous recessive = Thin pink fur (because of the absence of a dominant allele)
e
For the purposes of this experiment, Rehpogs mate once per year and produce two offspring each year.
Rehpogs are monogamous, faithful and fertile.
Part I
A small population of genetically diverse Rehpogs (equal numbers of purple fur and pink fur male and
female adult individuals) moved from their warm habitat to a cold climate. The cold environment exerts
selective pressure. Sadly, the Rehpogs with thin pink fur (homozygous recessive) freeze during cold
weather.
Field studies show that 50% of the thin pink fur individuals (homozygous recessive) die every winter. In
other words, 50% of the individuals with homozygous recessive genotypes are removed from this
population every winter.
What happens to the frequency of the dominant allele in this population over five years?
What happens to the frequency of the recessive allele in this population over five years?
Natural Selection does not always eliminate the recessive allele from a population, even after many
generations. How is this possible?
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