Genetics: From Genes to Genomes, 5th edition
5th Edition
ISBN: 9780073525310
Author: Leland H. Hartwell, Michael L. Goldberg, Janice A. Fischer, Leroy Hood, Charles F. Aquadro
Publisher: McGraw-Hill Education
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Chapter 20, Problem 20P
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| a. | What is the confidence interval for p = 0.5 when N = 100,000? |
| b. | What is the confidence interval for p = 0.5 when N = 10? |
| c. | How are the results in parts (a) and (b) related to the consequences of a population bottleneck? |
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Students have asked these similar questions
An autosomal locus has alleles A and a.
The allele frequencies in a population at Hardy Weinberg equilibrium are
p = Freq(A) = 0.5
q = Freq(a) = 0.5
What is the frequency of homozygous wild-type (AA) in this population?
Enter a single number between 0 and 1, for example, 0.33
An autosomal locus has alleles A and a.
The allele frequencies in a population at Hardy Weinberg equilibrium are
p = Freq(A) = 0.1
q = Freq(a) = 0.9
What is frequency of heterozygotes in this population?
Enter a single number between 0 and 1, for example 0.33
Consider an autosomal locus with alleles A and a. If the the allele
frequencies are as follows
Freq(A) = 0.4,
Freq(a) = 0.6.
, then what is the predicted frequency of heterozygous Aa individuals,
assuming the population is in Hardy-Weinberg equilibrium?
Freq(Aa) = ?
Enter a number between 0 and 1, inclusive, for example 0.33
Chapter 20 Solutions
Genetics: From Genes to Genomes, 5th edition
Ch. 20 - Choose the best matching phrase in the right...Ch. 20 - When an allele is dominant, why does it not always...Ch. 20 - A population with an allele frequency p of 0.5 and...Ch. 20 - Prob. 4PCh. 20 - Which of the following populations are at...Ch. 20 - A dominant mutation in Drosophila called Delta...Ch. 20 - A large, random mating population is started with...Ch. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Two hypothetical lizard populations found on...
Ch. 20 - It is the year 1998, and the men and women sailors...Ch. 20 - Prob. 12PCh. 20 - In 1927, the ophthalmologist George Waaler tested...Ch. 20 - Prob. 14PCh. 20 - A gene has two alleles A frequency = p and a...Ch. 20 - Some people can taste the bitter compound...Ch. 20 - Androgenetic alopecia pattern baldness is a...Ch. 20 - Why is the elimination of a fully recessive...Ch. 20 - Tristan da Cunha is a group of small islands in...Ch. 20 - Small population size causes genetic drift because...Ch. 20 - Prob. 21PCh. 20 - A mouse mutation with incomplete dominance t =...Ch. 20 - In Drosophila, the vestigial wings recessive...Ch. 20 - Prob. 24PCh. 20 - You have identified an autosomal gene that...Ch. 20 - In Europe, the frequency of the CF allele causing...Ch. 20 - An allele of the G6PD gene acts in a recessive...Ch. 20 - Explain why evolutionary biologists monitor...Ch. 20 - What is the most straightforward evidence at the...Ch. 20 - In March 2013, the American Journal of Human...Ch. 20 - If you go back 40 generations into your biological...Ch. 20 - In Fig. 21.17, to what part of the world does...Ch. 20 - Predict the DNA sequences at the four nodes...Ch. 20 - A cladogram not drawn to scale for the taxonomic...Ch. 20 - As noted in Fig. 21.22, humans now living in...
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- A population has the following genotype frequencies AA=0.3844, Aa=0.4712, aa=0.1444. Assuming Hardy-Weinberg equilibrium, what are the allele frequencies in the population?arrow_forwardPretend that you are comparing the actual genotype distribution for a population with the distribution of genotypes predicted by the Hardy-Weinberg theorem. So you hypothesize that the population is in Hardy-Weinberg equilibrium (i.e. that actual population data fit the Hardy-Weinberg expectations). If you carry out chi-square goodness of fit test and calculate a total chi-square value of 0.03 with 1 degree of freedom (see table), what does this mean?arrow_forwardSNP microarray analysis shows the genotype at a particular locus for 984 people. 51 individuals are AA, 311 are AC and 622 are CC. Calculate genotype and allele frequencies. I Is this population in H-W Eq? Provide support using Chi Square analysis. State null hypothesis and whether you will reject or fail to reject the null hypothesis. Why is it NOT valid to show that p2 + 2pq + q2 =1 as evidence that population is in H-W Eq?arrow_forward
- In a population of 200 people, an allele F has a frequency of 84%. What is the frequency of allele f? Using the Hardy-Weinberg equation, estimate the numbers of homozygous dominant, heterozygous, and homozygous recessive genotypes. (Remember that the formula is: p2 + 2pq + q2 = 1, where p represents the dominant allele and q represents the recessive allele.) *Be sure to account for all 200 people in the population.arrow_forwardThe following data were obtained from a Ghanaian population of 152 people. Blood Type Number of Individuals M 61 MN 64 N 27 Calculate the frequencies of the M and N alleles in this population. What are the expected numbers of individuals of each genotypic class in this population? Assume Hardy-Weinberg conditions. Use the chi-squared test to determine if these data fit the Hardy-Weinberg equilibrium model. The degrees of freedom for this test should be 1. Why is this appropriate?arrow_forwardIn a population with two alleles at the R locus (R and r), the frequency of the genotype rr is 0.24. Assuming that the R locus is at Hardy-Weinberg equilibrium in this population, what is the frequency of heterozygotes (Rr)? Round and report your answer to the second decimal place (0.00). Your Answer:arrow_forward
- In a population with two alleles at the R locus (R and r), the frequency of the genotype rr is 0.31. Assuming that the R locus is at Hardy-Weinberg equilibrium in this population, what is the frequency of heterozygotes (Rr)? Round and report your answer to the second decimal place (0.00).arrow_forwardIn a population with two alleles at the C locus (C and c), the frequency of the genotype cc is 0.14. Assuming that the C locus is at Hardy-Weinberg equilibrium in this population, what is the frequency of heterozygotes (Cc)? Round and report your answer to the second decimal place (0.00). Vour Answor:arrow_forwardConsider the B locus which has two alleles in a population: B and b. Researchers examined the genotypes several individuals for this locus and obtained the following numbers B/B: 302individuals B/b: 56individuals b/b: 17individuals If the B locus is at Hardy-Weinberg equilibrium, what would the expected number of individuals with the Bb genotype? Round your answer to the closest full number.arrow_forward
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