Homework Answers
1)Three alleles are IA,IB and i
2) Allele i is recessive to IA and IB.
3) IA and IB are co dominant.
4) AB blood group is result of pressence of IA and IB ,which produces antigens A and B on RBC cell surface.So their genotype is fixed i.e..presence of IA at one locus and IB at another locus of homologous chromosomes.
O blood group is result of absence of any of antigens on their RBC.It happens when genes contain neither A nor B.So their genotype is fixed i.e..presence of i at one locus and i at another locus of homologous chromosomes.
A blood group can be because of IA and IA or IA and i.So they have two possibilities of genotypes.
B blood group can be because of IB and IB or IB and i.So they have two possibilities of genotypes.
5) and 6) It is attached below.
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Analyzing Genetic Data A. ABO Blood Group The human ABO blood group is an example of...
ABO BLOOD TYPE The ABO blood groups in humans are determined by multiple alleles. A single...
ABO BLOOD TYPE The ABO blood groups in humans are determined by multiple alleles. A single gene can exist in any of three allelic forms: 14, Bor i. This inheritance of the ABO blood type displays codominance as well as complete dominance. The two codominant genes A and B code for production of antigen A and antigen B on the surface of red blood cells, and are both completely dominant to the recessive allele i. The chart below shows the...
I did 1-5 but confused on the rest LAB EXERCISE 4.1 continued Name 6 Remember that...
I did 1-5 but confused on the rest
LAB EXERCISE 4.1 continued Name 6 Remember that the ability to taste PTC is dominant to the inability. Two normally pigmented taster parents have an albino, taster son and a non-taster daughter with normal pigmentation. Using A and Tand a and t for the dominant and recessive alleles, respectively, create a Punnett square for two traits, as shown on pages 71-73 in the section "Transmission of Autosomal Traits: Two at a Time."...
In simple Mendelian inheritance alleles display a simple dominant/recessive relationship. There are many exceptions to Mendelian...
In simple Mendelian inheritance alleles display a simple dominant/recessive relationship. There are many exceptions to Mendelian laws of inheritance. Most genes have more than two allelic forms and do not exhibit simple Mendelian inheritance. The human ABO antigens are an example of a multiple allelic trait. There are three ABO blood group antigens, IA, IB and i. The i allele is recessive to both IA and IB. A person who is homozygous ii has type O blood and does not...
BIO 142 Test X 9) Curly hair (CC) is incompletely dominant over straight hair (ce), therefore the heterozygous genotype (Ce) produces wavy hair (Ce), Set up the Punnet square and cross a mother with...
BIO 142 Test X 9) Curly hair (CC) is incompletely dominant over straight hair (ce), therefore the heterozygous genotype (Ce) produces wavy hair (Ce), Set up the Punnet square and cross a mother with wavy hair with a man with wavy hair. (5 points) What is the percentage of different phenotypes of their children? Show your works. Female Genotype: Genotype ratio Phenotype ratio: Male Genotype: 10) Cross a father with blood type AO and a mother with BO blood type....
We are familiar with blood phenotypes A, B, and O and the 3 alleles IA, IB...
We are familiar with blood phenotypes A, B, and O and the 3 alleles IA, IB and i There is a second locus, H, which allows synthesis of the precursor to the substances on the blood cell surface that make for having A or B phenotype. A recessive mutation, h, at this site, in the homozygous condition, prevents this precursor from forming. In that circumstance, A, B, or AB phenotype cannot be expressed despite their alleles being present; this is...
We are familiar with blood phenotypes A, B, and O and the 3 alleles IA, IB...
We are familiar with blood phenotypes A, B, and O and the 3 alleles IA, IB and i There is a second locus, H, which allows synthesis of the precursor to the substances on the blood cell surface that make for having A or B phenotype. A recessive mutation, h, at this site, in the homozygous condition, prevents this precursor from forming. In that circumstance, A, B, or AB phenotype cannot be expressed despite their alleles being present; this is...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
The ABO Blood System is an example of both a Multiple Allele System and codominance. Identify...
The ABO Blood System is an example of both a Multiple Allele System and codominance. Identify the following aspects of the ABO system and perform the punnett square below to demonstrate the possible genotypes and phenotypes. All Possible Genotypes: All possible Phenotypes:
ABO blood types are determined by 3 alleles at an autosomal locus: IA and IB are...
ABO blood types are determined by 3 alleles at an autosomal locus: IA and IB are codominant, and iO is recessive. Assuming H-W equilibrium, if the frequency of the iO allele is 0.1 and the frequency of the IAallele is 0.6, predict the frequency of all 4 blood types in the population (type A, type B, type AB, and type O).
1. For each of the following blood types, list the possible genotypes: Phenotype Possible Genotypes A B...
1. For each of the following blood types, list the possible genotypes: Phenotype Possible Genotypes A B AB O 2. Dr. Paul is blood type O. His father was blood type A and his mother was blood type B. What were the genotypes of his parents? What are the possible blood types and phenotypic ratios expected for a cross involving these parental genotypes? 3. In the ABO blood system in human beings, alleles A and B are codominant and both are...
ABO BLOOD TYPE The ABO blood groups in humans are determined by multiple alleles. A single gene can exist in any of three allelic forms: 14, Bor i. This inheritance of the ABO blood type displays codominance as well as complete dominance. The two codominant genes A and B code for production of antigen A and antigen B on the surface of red blood cells, and are both completely dominant to the recessive allele i. The chart below shows the...
I did 1-5 but confused on the rest
LAB EXERCISE 4.1 continued Name 6 Remember that the ability to taste PTC is dominant to the inability. Two normally pigmented taster parents have an albino, taster son and a non-taster daughter with normal pigmentation. Using A and Tand a and t for the dominant and recessive alleles, respectively, create a Punnett square for two traits, as shown on pages 71-73 in the section "Transmission of Autosomal Traits: Two at a Time."...
BIO 142 Test X 9) Curly hair (CC) is incompletely dominant over straight hair (ce), therefore the heterozygous genotype (Ce) produces wavy hair (Ce), Set up the Punnet square and cross a mother with wavy hair with a man with wavy hair. (5 points) What is the percentage of different phenotypes of their children? Show your works. Female Genotype: Genotype ratio Phenotype ratio: Male Genotype: 10) Cross a father with blood type AO and a mother with BO blood type....
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
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