The 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 shownthe table.Possible Genotypeand Phenotypes ofABO Blood GroupPhenotypesGenotypes (Blood types)AJA or AiType AType B|Туре ОType ABB|B or 1BiAJBWhat percentage of offspring from a cross between a homozygous Type A parent with a heterozygous Type A parent is expected to contain the i allele?O A 25%O B. 50%Ос. 75%O D. 100%acer

Blood group of a particular individual can be evaluated by the presence or absence of antigen on the…

The ABO blood group has three different alleles: , P, and i. The genotypes and phenotypes (blood types) for different combinations of the three alleles are shown the table. Possible Genotype and Phenotypes of ABO Blood Group Genotypes Phenotypes (Blood types) AJA or 1Ai Туре A Type B Type O |Туре АВ B|B or 1Bi AJB What percentage of offspring from a cross between a homozygous Type A parent with a heterozygous Type A parent is expected to contain the i allele? O A 25% B. 50% С. 75% O D. 100%

The ABO blood group has three different alleles: , P, and i. The genotypes and phenotypes (blood types) for different combinations of the three alleles are shown the table. Possible Genotype and Phenotypes of ABO Blood Group Genotypes Phenotypes (Blood types) AJA or 1Ai Туре A Type B Type O |Туре АВ B|B or 1Bi AJB What percentage of offspring from a cross between a homozygous Type A parent with a heterozygous Type A parent is expected to contain the i allele? O A 25% B. 50% С. 75% O D. 100%

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 9CT

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The equation p2+ 2pq + q2= 1 representing theHardy-Weinberg proportions examines genes withonly two alleles in a population.a. Derive a similar equation describing the equilibrium proportions of genotypes for a gene withthree alleles. [Hint: Remember that the HardyWeinberg equation can be written as the binomialexpansion (p + q)2.]b. A single gene with three alleles (IA, IB, and i) isresponsible for the ABO blood groups. Individualswith blood type A can be either IA IAor IA i;those with blood type B can be either IB IBor IB i;people with AB blood are IA IB, and type O individuals are ii. Among Armenians, the frequency of IAis0.360, the frequency of IBis 0.104, and the frequencyof i is 0.536. Calculate the frequencies of individuals in this population with the four possible bloodtypes, assuming Hardy-Weinberg equilibrium.In Problems 15–17, you will see that because matingbetween individuals within populations at Hardy-Weinbergequilibrium is random, it is possible to predict…
In humans, the four blood types A, B, O, and AB are determined by three alleles IA, IB, and i. Write the genotype for each person based on the descriptions given below: a. Homozygous for the “B” allele b. Heterozygous for the “A” allele c. Type O d. Type “A” and had a type “O” parent e. Type “AB” f. Blood can be donated to anybody g. Can only get blood from a type “O” donor Mrs. Essy is type “A” and Mr. Essy is type “O.” They have three children named Matthew, Mark, and Luke. Mark is type “O,” Matthew is type “A,” and Luke is type “AB.” Based on this information: a. Mr. Essy must have the genotype b. Mrs. Essy must have the genotype because has blood type c. Luke cannot be the child of these parents because neither parent has the allele In garden peas, round seeds (R) are completely dominant to wrinkled seeds (r), and yellow seeds (Y) are completely dominant to green seeds (y). Consider the following dihybrid cross. Answer the following questions based on the results of…
Blood type is determined by multiple codominant alleles of the I gene, IA, IB, and i, where ii results in type O. The genotypes of a husband and wife are IAIB x IAi. Among the blood types of their children, how many different genotypes and phenotypes are possible? Group of answer choices 2 genotypes, 3 phenotypes 4 genotypes, 3 phenotypes 3 genotypes, 3 phenotypes 3 genotypes, 4 phenotypes
ABO Blood TypeThe following pedigree shows the incidence of ABO blood types in a family. dentify the genotypes of the following individuals: Individual Genotype II-1 II-2 II-4 II-5 III-2 III-3
In a large, randomly mating population, the frequency of the allele (s)for sickle-cell hemoglobin is 0.028. The results of studies have shownthat people with the following genotypes at the beta-chain locus producethe following average numbers of offspring:Genotype Average numberof offspring producedSS 5Ss 6ss 0a. What will the frequency of the sickle-cell allele (s) be in the nextgeneration?b. What will the frequency of the sickle-cell allele be at equilibrium?
A group of people are studiedd with made up blood types AZ blood group which is a blood type controlled by a single gene with two loci. Indivuals in this group may be “D” ( = that their homozygous for the “D” allele) “Z” = homozygous for the “z” allele. *DZ= Heterzygous ** Total Number of people with each type 102 people have D type blood 96 have blood type DZ 31 people in this group have type “Z” QUESTION Now please calculate the allele frequencies of “D”and “Z” In doing so use variable “P”= to represent “D” allele And “q”= to represent “Z” allele Calculate the genotype frequencies expected in the population based of the q and p frequencies you calculate. A)frequency of the “Z” allele in the population ________ B)Frequency of the “D” allele in the populations__________ C)A number of expected individuals with the “DD” genotype in the population? __________ D) NUMBER OF EXPECTED INDIVIDUALS WITH THE “ZZ” GENOTYPE IN THE POPULATION?_______ E) A NUMBER OF EXPECTED…
The ABO blood group in humans is controlled by a single locus with three different alleles. Homozygosity for IA produces type A blood. Homozygosity for IB produces type B blood. Homozygosity for IO produces type O blood. Type AB blood is produced by the genotype IA/IB. IO is recessive to IA and IB; thus, IA/IO gives type A blood and IB/IO gives type B blood. In the United States, the allele frequencies for the ABO alleles are given below. The Rh factor in blood typing also has multiple alleles, but the alleles can be classified into two types, positive and negative. Rh+ is dominant over Rh−. The allele frequencies of these alleles are also indicated below. The MN blood antigen trait is controlled by two codominant alleles at a single locus. Type M individuals are homozygous for the M allele, type MN individuals are heterozygous, and type N individuals are homozygous for the N allele (codominant). In the United States, the allele frequencies for this blood group are also indicated…
In Ayrshire cattle, the spotting of the coat can be either red andwhite or mahogany and white. The mahogany-and-white phenotypeis caused by the allele SM (where the letter S indicates spotting, andthe superscript M stands for mahogany). The red-and-white phenotypeis controlled by the allele SR (where the superscript R standsfor red). The table below shows the relationships between genotypeand phenotype for males and females: Explain the pattern of inheritance.
Assume that blood type is inherited as A and B dominant over O, but A and B are codominantover each other. Genotypes (IA IA) and (IA i) are then phenotypically type A, genotypes (IB IB) and(IB i) are type B, genotype (IA IB) is type AB, and genotype (i i) is type O blood. A man with bloodtype IA IA marries a woman with type AB blood. What are the genotypic and phenotypic ratios ofthe children?
Three babies were born in a hospital on the same night, and their blood groups were later found to beO, B, and AB. Complete the Punnett square to cross parents AB x O (using the alleles IA, IB, and i) todetermine the blood type possibilities their off-springs would have. Use the Punnett square informationto determine which baby belongs to them
For each of the following genotypes state whether you have a homozygous or heterozygous for each trait (you may need to use 2 terms for one genotype). AaGG Rrgg TTGg
Huntington disease is a rare dominant condition in humans that results in a slow but inexorable deteriorationof the nervous system. The disease shows what mightbe called age-dependent penetrance, which is to saythat the probability that a person with the Huntingtongenotype will express the phenotype varies with age.Assume that 50% of those inheriting the HD allele willexpress the symptoms by age 40. Susan is a 35-yearold woman whose father has Huntington disease. Shecurrently shows no symptoms. What is the probabilitythat Susan will show symptoms in five years?