1) a What assumptions are made when using the Hardy– Weinberg formula to estimate genotypic frequencies...
Homework Answers
Hardy-Weinberg equilibrium:
p+q = 1
p2+2pq+q2 = 1
Conditions for H-W equilibrium:
1. A large population
2. Random mating
3. No natural selection
4. No immigration or emigration
5. No change in allelic frequency due to mutation
Factors that disrupt hardy Weinberg equilibrium:
1. Mutations
2. Natural selection
3. Non-random mating
4. Genetic drift
5. Gene flow
Add Answer to:
1)
a What assumptions are made when using the Hardy– Weinberg
formula to estimate genotypic frequencies...
It is exceedingly rare for all the Hardy-Weinberg assumptions to be met in nature.
It is exceedingly rare for all the Hardy-Weinberg assumptions to be met in nature. Evolution is a change in allele frequencies in a population over time, so a population in Hardy-Weinberg equilibrium is not evolving. Match the following terms with the most correct statement. Each of these relates to evolutionary forces or conditions that violate the Hardy- Weinberg assumptions. (Each term only matches to one statement). Genetic drift - Migration - Inbreeding - 4 Mutation - Natural selection - Nonrandom mating a. Does...
Give the Hardy–Weinberg expected genotypic frequencies for an autosomal locus with three alleles, where the frequencies...
Give the Hardy–Weinberg expected genotypic frequencies for an autosomal locus with three alleles, where the frequencies of alleles A1, A2, and A3 are defined as p, q, and r, respectively. Set the problem up and show your work. Tay–Sachs disease is an autosomal recessive disorder. Among Ashkenazi Jews, the frequency of Tay–Sachs disease is 1 in 3600. If the Ashkenazi population is mating randomly for the Tay–Sachs gene, what proportion of the population consists of heterozygous carriers of the Tay–Sachs...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man population that may be heterozygous carriers of recessive alleles for certain genetic diseases. Phenylketonuria (PKU) is a human metabolic dis- order that results in mental retardation if it is untreated in infancy. In the United States, one out of approximately 10.000 babies is born with the disor- der. Approximately what percent of the population are heterozygous carriers of the recessive PKU allele? If you...
14. Given below are the genotypic frequencies for a single gene with two alleles for three...
14. Given below are the genotypic frequencies for a single gene
with two alleles for three
different populations:
Population 1
AA
0.25
Aa
0.50
aa
0.25
Population 2 0.35 0.56 0.09
Population 3 0.49 0.42 0.09
Which of the following is NOT a correct statement about these
three populations?
A) Only two of the populations are in Hardy-Weinberg
equilibrium
B) Population 1 is in Hardy-Weinberg equilibrium; the frequency of
allele A is 0.5
C) Population 2 is not in Hardy-Weinberg...
BIOL400 Hardy-Weinberg Questions If the frequency of the dominant purple allele is 0.7 and the frequency...
BIOL400 Hardy-Weinberg Questions If the frequency of the dominant purple allele is 0.7 and the frequency of the recessive white allele is 0.3 what percent of the population will be purple? Assuming Hardy-Weinberg Equilibrium: if the frequency of white flowers is 4%, what are the allele frequencies for the purple and white alleles. If the frequency of the round allele is 0.5 and wrinkled allele is 0.5. What percent will be wrinkled? If the frequency of the sickle cell allele...
The Hardy-Weinberg principle and its equations predict that frequencies of alleles and genotypes remain constant from generation to generation in populations that are not evolving
.1. The Hardy-Weinberg principle and its equations predict that frequencies of alleles and genotypes remain constant from generation to generation in populations that are not evolving. What five conditions does this prediction assume to be true about such a population? a._______ b._______ c._______ d._______ e._______ 2. Before beginning the activity, answer the following general Hardy-Weinberg problems for practice (assume that the population is at Hardy-Weinberg equilibrium).a. If the frequency of a recessive allele is 0.3, what is the frequency of the dominant...
4. The Hardy-Weinberg Principle. For a single locus, if the frequency of one allele (allele A)...
4. The Hardy-Weinberg Principle. For a single locus, if the frequency of one allele (allele A) is 0.4, the frequency of the other allele (allele B) is 0.6, what are the expected frequencies of the AA genotype, the AB genotype and the BB genotype in the next generation? What are the eight assumptions that should be met when making the genotype frequency predictions? How do the eight assumptions serve to form a null model for evolution? Finally, how does one...
Hardy-Weinberg a. if you know allelic frequencies for a particular gene in your class, can you...
Hardy-Weinberg a. if you know allelic frequencies for a particular gene in your class, can you calculate phenotypic frequencies. why or why not b. if you know allelic frequencies for a population, can you always calculate phenotypic frequencies. c. if the fraction of homozygous recessive in a population is known, can the allelic frequencies and genotypic frequencies always be calculated? what conditions must be met?
Please help me about question c)!!! 1. The table below shows the genotypic frequencies of A/A,...
Please help me about question c)!!!
1. The table below shows the genotypic frequencies of A/A, A/a and a/a individuals in three human populations. "A" and "a" are two alleles of a gene coding for a protein involved in brain development (specifically, the trigeminal nerve). People who are heterozygous or homozygous A/A have one or more symptoms related to ACHOO syndrome, a very common condition whereby a person has the urge to sneeze upon sudden exposure to bright light (you...
Hardy Weinberg assignment P + Q = 1 In which P represents frequency of dominant allele...
Hardy Weinberg assignment P + Q = 1 In which P represents frequency of dominant allele and Q represents frequency of the recessive allele P2 + 2PQ + Q2 =1 P2 represents frequency of homozygous dominant 2PQ represents frequency of heterozygous Q2 represents frequency of homozygous recessive Consider a population of beetles on an island. There are 1000 beetles and they have different colored wings. Black wings are dominant over silver wings. Calculate the allele and the genotypic frequencies in...
2.3 Problem 3 The Hardy-Weinberg equation is useful for predicting the percent of a hu- man population that may be heterozygous carriers of recessive alleles for certain genetic diseases. Phenylketonuria (PKU) is a human metabolic dis- order that results in mental retardation if it is untreated in infancy. In the United States, one out of approximately 10.000 babies is born with the disor- der. Approximately what percent of the population are heterozygous carriers of the recessive PKU allele? If you...
14. Given below are the genotypic frequencies for a single gene
with two alleles for three
different populations:
Population 1
AA
0.25
Aa
0.50
aa
0.25
Population 2 0.35 0.56 0.09
Population 3 0.49 0.42 0.09
Which of the following is NOT a correct statement about these
three populations?
A) Only two of the populations are in Hardy-Weinberg
equilibrium
B) Population 1 is in Hardy-Weinberg equilibrium; the frequency of
allele A is 0.5
C) Population 2 is not in Hardy-Weinberg...
BIOL400 Hardy-Weinberg Questions If the frequency of the dominant purple allele is 0.7 and the frequency of the recessive white allele is 0.3 what percent of the population will be purple? Assuming Hardy-Weinberg Equilibrium: if the frequency of white flowers is 4%, what are the allele frequencies for the purple and white alleles. If the frequency of the round allele is 0.5 and wrinkled allele is 0.5. What percent will be wrinkled? If the frequency of the sickle cell allele...
4. The Hardy-Weinberg Principle. For a single locus, if the frequency of one allele (allele A) is 0.4, the frequency of the other allele (allele B) is 0.6, what are the expected frequencies of the AA genotype, the AB genotype and the BB genotype in the next generation? What are the eight assumptions that should be met when making the genotype frequency predictions? How do the eight assumptions serve to form a null model for evolution? Finally, how does one...
Please help me about question c)!!!
1. The table below shows the genotypic frequencies of A/A, A/a and a/a individuals in three human populations. "A" and "a" are two alleles of a gene coding for a protein involved in brain development (specifically, the trigeminal nerve). People who are heterozygous or homozygous A/A have one or more symptoms related to ACHOO syndrome, a very common condition whereby a person has the urge to sneeze upon sudden exposure to bright light (you...
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