Question
In: Biology
The frequency of two alleles in a gene pool is 0.19 (A) and 0.81(a). Assume that...
- The frequency of two alleles in a gene pool is 0.19 (A) and 0.81(a). Assume that the population is in Hardy-Weinberg equilibrium.
(a) Calculate the percentage of heterozygous individuals in the population.
(b) Calculate the percentage of homozygous recessives in the population.
- An allele W, for white wool, is dominant over allele w, for black wool. In a sample of 900 sheep, 891 are white and 9 are black. Calculate the allelic frequencies within this population, assuming that the population is in H-W equilibrium.
- In a population that is in Hardy-Weinberg equilibrium, the frequency of the recessive homozygote genotype of a certain trait is 0.09. Calculate the percentage of individuals homozygous for the dominant allele.
Solutions
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answers are in the picture attached!
gladiator answered 1 year agoRelated Solutions
Gene P has two alleles - P and p; gene Q has two alleles - Q...
Gene P has two alleles - P and p; gene Q has two alleles - Q and
q.
If an PQ/pq female is crossed with a
pq/pq male, what percent of the offspring would have
genotype pq/pq if...
A) the genes were completely
linked (no crossing-over at all; recombination frequency =
0; 1 mark)
B) the genes are 10 map units apart (1
mark)
C) the genes are 24 map units apart (1
mark)
For either part (B) or (C)...
Gene A has two alleles, A1 and A2. Gene B has two alleles, B1 and B2....
Gene A has two alleles, A1 and A2. Gene B has two alleles, B1
and B2. In a population, the following haplotypes are observed.
A1B1 = 0.2, A2B2 = 0.45, A1B2 = 0.15, and A2B1 = 0.2. Calculate the
extent of linkage disequilibrium, D.
Why is it that lethal recessive alleles remain in the human gene pool, rather than just...
Why is it that lethal recessive alleles remain in the human
gene pool, rather than just disappearing because of their
unfavorable phenotype for homozygous recessives?
Scenario: A sudden flood of a large area around the Mississippi
River occurs. In some local populations of a species of insects,
there is greater buoyancy and survival of some individuals due to
having the double recessive genotype of a gene that allowed them to
accumulate more lipids to float. A year after the flood,...
Why is it that lethal recessive alleles remain in the human gene pool, rather than just...
Why is it that lethal recessive alleles remain in the human
gene pool, rather than just disappearing because of their
unfavorable phenotype for homozygous recessives?
Scenario: A sudden flood of a large area around the Mississippi
River occurs. In some local populations of a species of insects,
there is greater buoyancy and survival of some individuals due to
having the double recessive genotype of a gene that allowed them to
accumulate more lipids to float. A year after the flood,...
Do genetic drift and gene flow consistently increase the frequency of alleles that enhance survival and...
Do genetic drift and gene flow consistently increase the
frequency of alleles that enhance survival and reproduction?
Explain.
1 - A population that is at equilibrium has two alleles, A and a. The frequency...
1 - A population that is at equilibrium has two alleles,
A and a. The frequency of the recessive allele
a is 0.3. What is the frequency of individuals that are
homozygous recessive?
2 - A population that is at equilibrium has two alleles, A and
a. The frequency of the dominant allele A is 0.3. What is the
frequency of individuals that are homozygous recessive?
In a Hardy-Weinberg population with two alleles, A and a, that are in equilibrium, the frequency...
In a Hardy-Weinberg population with two alleles, A and a, that
are in equilibrium, the frequency of allele A is 0.35. What is the
percentage of the population that is homozygous for this
allele?
a. In a pea plant, leaf color is controlled by a gene with two alleles: a...
a. In a pea plant, leaf color is controlled by a gene with two
alleles: a dominant allele G for green leaves, and a recessive
allele g for yellow leaves. A researcher crossed a plant with green
leaves with a plant with yellow leaves. All the
resulting offspring had green leaves. What were the genotypes of
the two parental plants? (5 points)
b. Explain briefly what is a bottleneck effect and
give two examples (the examples can be imaginary). (5 points)
What is the Hardy-Weinberg principle for a gene with two alleles in a tetraploid?
What is the Hardy-Weinberg principle for a gene with two alleles
in a tetraploid?
1. Assume alleles of the height gene of corn plants determine the height of the plant's...
1. Assume alleles of the height gene of corn plants
determine the height of the plant's stalks, and that there are two
alleles of the gene: "H1" and "H2." Individuals that are homozygous
for the "H1" allele are 10 feet in height, individuals
that are homozygous for the "H2" allele are 6 feet in
height, and heterozygotes for these two alleles are 6 feet in
height. From this data, it can be concluded that, with respect to
the "H1" allele,...
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