Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 22, Problem 28P
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The following are the observed ABO blood group phenotypes among a group of Canadian Indians: O A B AB , 288 280 19 13 , respectively. Compute for the gene frequencies.
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You study a population of California kingsnake (Lampropeltis getulus californiae). There are two color patterns
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Chapter 22 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 22 - 20.1 Compare and contrast the terms in each of the...Ch. 22 - In a population, what is the consequence of...Ch. 22 - 20.3 Identify and describe the evolutionary forces...Ch. 22 - Describe how natural selection can produce...Ch. 22 - Thinking creatively about evolutionary mechanisms,...Ch. 22 - 20.6 Genetic drift, an evolutionary process...Ch. 22 - Over the course of many generations in a small...Ch. 22 - Catastrophic events such as loss of habitat,...Ch. 22 - 20.9 George Udny Yule was wrong in suggesting that...Ch. 22 - 20.10 The ability to taste the bitter compound...
Ch. 22 - Figure 20.6 illustrates the effect of an ethanol ...Ch. 22 - 20.12 Biologists have proposed that the use of...Ch. 22 - 20.13 Two populations of deer, one of them large...Ch. 22 - 20.14 Directional selection presents an apparent...Ch. 22 - 20.15 What is inbreeding depression? Why is...Ch. 22 - 20.16 Certain animal species, such as the...Ch. 22 - Genetic Analysis 20.1 predicts the number of...Ch. 22 - 20.18 In a population of rabbits, and . The...Ch. 22 - Sickle cell disease (SCD) is found in numerous...Ch. 22 - 20.20 Epidemiologic data on the population in the...Ch. 22 - The frequency of tasters and nontasters of PTC...Ch. 22 - Tay-Sachs disease is an autosomal recessive...Ch. 22 - 20.23 Cystic fibrosis (CF) is the most common...Ch. 22 - 20.24 In the mouse, Mus musculus, survival in...Ch. 22 - 20.25 In a population of flowers growing in a...Ch. 22 - Assume that the flower population described in the...Ch. 22 - 20.27 ABO blood type is examined in a Taiwanese...Ch. 22 - 20.28 A total ofmembers of a Central American...Ch. 22 - 20.29 A sample offield mice contains individuals...Ch. 22 - Prob. 30PCh. 22 - Albinism, an autosomal recessive trait...Ch. 22 - Prob. 32PCh. 22 - 20.33 Evaluate the following pedigree, and answer...Ch. 22 - Evaluate the following pedigree, and answer the...Ch. 22 - The following is a partial pedigree of the British...Ch. 22 - Draw a separate hypothetical pedigree identifying...Ch. 22 - Prob. 37PCh. 22 - 20.38 Achromatopsia is a rare autosomal recessive...Ch. 22 - 20.39 New allopolyploid plant species can arise by...
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- While studying the frequency of sickle-cell disease ("sickle cell anemia") in a population living in sub-Saharan Africa, you obtain the following data from a sample of n= 100 people (note that I chose a simpler system for identifying the alleles rather than using "Hb S" for sickle cell allele), which is the actual name and what you used in lab). What is the frequency of the sickle cell allele (b) in the sample below from a human population? Sample Data BB-60 individuals (No sickle cell disease) Bb-30 individuals (No sickle cell disease) bb-10 individuals (Sickle cell disease) 1. 0.25 2. 0.10 3. 0.35 4. 0.60 5. 0.20arrow_forwardThe ABO blood group has three different alleles: F, P, and i. The genotypes and phenotypes (blood types) for different combinations of the three alleles are shown in the table. Possible Genotype and Phenotypes of ABO Blood Group Phenotypes (Blood types) Type A Туре В Туре О Type AB Genotypes AJA or Ai BIB or 1Bi JAJB What percentage of offspring from a cross between a homozygous Type B parent with a Type AB parent is expected to contain the i allele? O A. 25% ов 0% ос. 75% O D. 100% acerarrow_forwardHere, N₁ is the number of fish with genotype II, N₁c the number with genotype lc, and Ncc the number with genotype cc. Use genotype сс counts from the table to calculate the frequencies of the two alleles among your ten fish as follows:arrow_forward
- Using the two equations, p + q = 1 and p2 + 2pq + q2 = 1, answer the following questions. Maple Syrup Urine Disease (MSUD) is an autosomal recessive condition that causes intellectual and physical disabilities, difficulty feeding, and a sweet maple syrup odor to the urine. In Costa Rica, the incidence of MSUD is calculated as approximately 1 in 8,000 newborns. Calculate the allele frequencies for the normal and disease alleles.arrow_forwardA total of 6129 North American Caucasians were blood typed for the MN locus, which is determined by two codominant alleles, LM and LN. The following data were obtained: Blood type Number M 1787 MN 3039 N 1303 Carry out a chi-square test to determine whether this population is in Hardy–Weinberg equilibrium at the MN locus.arrow_forwardPolice discovered the body of a woman who had been brutally assaulted. DNA from the crime scene was analysed and yielded the following SNP genotype: A1A2, G2G2, T1T2 for both the victim and a suspect. If the frequencies of A1, G1 and T1 alleles are 0.9, 0.99, 0.8 respectively, calculate the probability that another person in the group of suspects is responsible for the crime.arrow_forward
- Using the product rule, what is the total frequency of the profile, given the following genotype frequencies for each of the loci: D3S1358 = 0.04453 vWA = 0.02725 D5S818 = 0.07534 0.008406 0.0000914 0.14712 10,491 0.914208arrow_forwardA total of 6129 North American Caucasians were blood typed for theMN locus, which is determined by two codominant alleles, LM and LN.The following data were obtained:Blood type NumberM 1787MN 3039N 1303Use a chi-square test to determine whether this population is in Hardy–Weinberg equilibrium at the MN locus.arrow_forwardIn a population of 1000 individuals, 150 have kinky hair, 460 have wavy hairy, and the rest have straight hair. Let us assume that hair type is governed by a pair of alleles, and there are two types of alleles, S (kinky) and s (straight), with the heterozygote condition being wavy. Compute for the allelic frequencies for hair type in the population.arrow_forward
- A mountain region has a population of 5,000 mountain goats. You score these animals for the R locus and find that this locus has two alleles, R (dominant) and r (recessive). 3200 individuals are homozygous dominant, 1,600 are heterozygous, and 200 are homozygous recessive. A deadly virus infects all of the RR mountain goats in the population (above), killing all individuals of this genotype and leaving the population with only the rr and Rr mountain goats. a) Calculate the new allele frequencies for this population. Show your work. b) Calculate the new (observed) genotypic frequencies for this population. Show your work. c) Does this population still appear to be at H-W equilibrium? Why or why not? (You do not need to analyze this statistically).arrow_forwardThe cystic fibrosis allele is recessive. The frequency of cystic fibrosis is 0.000484, or about one in 2000 people. Calculate the allele frequencies. What portion of people are carriers (heterozygotes) for cystic fibrosis?arrow_forwardIn a gorilla population in Zaire we consider a single gene locus with two alleles G and g, with G dominant to g. The frequency of the allele g is 0.01. Assuming Hardy- Weinberg proportions, the frequency of the genotype Gg is:arrow_forward
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