Using I / IA / IB for the ABO gene alleles and + / – for...
Using I / IA / IB for the ABO gene alleles and + / – for the Rh gene alleles*, indicate the genotype(s) for someone who is O negative: homozygous A positive: [*Hint: assume the wild-type Rh allele is haplosufficient]
Homework Answers
Answer:
O negative genotype : II ; -/-
Homozygous A positive:
IAIA ; +/+ (homozygous conditions for both type "A" & Rh positive)
IAIA ; +/- (homozygous conditions for type "A" & heterozygous condition for Rh positive)
There are three main alleles in the ABO blood group system - IA, IB, and i....
There are three main alleles in the ABO blood group system -
IA, IB, and i. We've talked about the ABO
system in class, you can find a brief explanation below and
here.
The I gene encodes for a glycosyltransferase
that modifies at the H antigen.
The glycosyltransferase encoded by IA adds an 'A'
sugar group to antigen H, the glycosyltransferase encoded by
IB adds a 'B' sugar group and i encodes an inactive
glycosyltransferase that leaves the H antigen...
a.) ABO blood types are determined by a single gene with 3 alleles. Alleles A (IA)...
a.) ABO blood types are determined by a single gene with 3 alleles. Alleles A (IA) and B (IB) are co-dominant to allele O (i). Cecilia, a woman with blood type A whose father and mother both had blood types AB, marries a man named Joseph. Joseph has blood type B. Joseph’s mother had blood type O. What is Cecilia’s genotype with respect to blood type? b.) ABO blood types are determined by a single gene with 3 alleles. Alleles...
With respect to genetics, ABO blood types are controlled by a single gene designated I, which...
With respect to genetics, ABO blood types are controlled by a single gene designated I, which has three alleles. The I A allele gives blood type A, I B gives blood type B, and i gives blood type O. The I A and I B alleles are codominant and i allele is recessive to both the I A and I B alleles. Aside from the I alleles, there are two other genes that when mutated affect ABO blood type inheritance....
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).
The ABO blood groups.There are three main alleles in the ABO blood group system -...
The ABO blood groups.There are three main alleles in the ABO blood group system -
IA, IB, and i. We've talked about the ABO
system in class, you can find a brief explanation below and
here.The I gene encodes for a glycosyltransferase
that modifies at the H antigen.The glycosyltransferase encoded by IA adds an 'A'
sugar group to antigen H, the glycosyltransferase encoded by
IB adds a 'B' sugar group and i encodes an inactive
glycosyltransferase that leaves the H...
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...
In the ABO blood groups, there are A, B, O, and AB blood types. They are due to three alleles, IA...
In the ABO blood groups, there are A, B, O, and AB blood types. They are due to three alleles, IA, IB, and IO, with IAIA and IAIO having blood group A; with IBIB and IBIO having blood group B; with IAIB having blood group AB; and with IOIO having blood group O. Among many aboriginal American Indian tribes, the allele frequency of IB in the ABO blood groups is extremely low. In one sample of 600 Papago Indians from...
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...
ABO Blood Type allele frequencies: [I^O] = 0.7 , [I^A] = 0.2 , [I^B] = 0.1...
ABO Blood Type allele frequencies: [I^O] = 0.7 , [I^A] = 0.2 , [I^B] = 0.1 For the Rh factor frequencies: [Rh+] = 0.8 , [Rh-] = 0.2 1. In this population what is the frequency of the type "O", Rh positive individuals? 2. The rarest type of blood is type AB Rh negative. How many of these are expected in 1000 individuals? 3. In this population what will be the frequency go type "A", Rh negative individuals? 4. Assume...
There are three main alleles in the ABO blood group system -
IA, IB, and i. We've talked about the ABO
system in class, you can find a brief explanation below and
here.
The I gene encodes for a glycosyltransferase
that modifies at the H antigen.
The glycosyltransferase encoded by IA adds an 'A'
sugar group to antigen H, the glycosyltransferase encoded by
IB adds a 'B' sugar group and i encodes an inactive
glycosyltransferase that leaves the H antigen...
The ABO blood groups.There are three main alleles in the ABO blood group system -
IA, IB, and i. We've talked about the ABO
system in class, you can find a brief explanation below and
here.The I gene encodes for a glycosyltransferase
that modifies at the H antigen.The glycosyltransferase encoded by IA adds an 'A'
sugar group to antigen H, the glycosyltransferase encoded by
IB adds a 'B' sugar group and i encodes an inactive
glycosyltransferase that leaves the H...
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