Question

In: Biology

Give the expected genotypic and phenotypic ratios for the following crosses for ABO blood types: IAi...

Give the expected genotypic and phenotypic ratios for the following crosses for ABO blood types:

I^Ai x I^Bi =

I^AI^B x I^Ai

I^AI^B x I^AI^B

ii x I^Ai

I^AI^B x ii

Solutions

Expert Solution

Co-dominant allele determine human blood type. There are three different alleles for human bloos group, known as I^A, I^B, and i. The I^A and I^B alleles are codominant, while the i allele is recessive.

There are four blood groupsin humans: A, B, AB and O. A and B individuals can be homozygous (I^AI^A, or I^BI^B) or heterozygous ((I^Ai or I^Bi, respectively).

1) I^Ai X I^Bi

		I^Bi
		I^B	i
I^Ai	I^A	I^AI^B AB blood group	I^Ai A blood group
	i	I^Bi B blood group	ii O blood group

Genotype ratio: 1 I^AI^B : 1 I^Ai : I^Bi: 1 ii

Phenotype Ratio: 1 AB : 1A: 1B :1 O

2) I^AI^B x I^Ai

		I^Ai
		I^A	i
I^AI^B	I^A	I^AI^A A blood group	I^Ai A blood group
	I^B	I^AI^B AB blood group	I^Bi B blood group

Genotype ratio: 1 I^AI^A : 1 I^AI^B : I^Ai: 1 I^Bi

Phenotype Ratio: 2A: 1 AB : 1B

3) I^AI^B x I^AI^B

		I^AI^B
		I^A	I^B
I^AI^B	I^A	I^AI^A A blood group	I^AI^B AB blood group
	I^B	I^AI^B AB blood group	I^BI^B B blood group

Genotype ratio: 1 I^AI^A : 2 I^AI^B : 1 I^BI^B

Phenotype Ratio: 1A: 2 AB : 1B

4) ii x I^Ai

		I^Ai
		I^A	i
ii	i	I^Ai A blood group	ii O blood group
	i	I^Ai A blood group	ii O blood group

Genotype ratio: 2 I^Ai : 2 ii

Phenotype Ratio: 2 A : 2O

5) I^AI^B x ii

		ii
		i	i
I^AI^B	I^A	I^Ai A blood group	I^Ai A blood group
	I^B	I^Bi B blood group	I^Bi B blood group

Genotype ratio: 2 I^Ai : 2 I^Bi

Phenotype Ratio: 2 A : 2B

gladiator answered 1 year ago

Next > < Previous

Related Solutions

(30) The textbook discusses human blood typing (ABO) from both phenotypic and genotypic perspectives. If a...

(30) The textbook discusses human blood typing (ABO) from both phenotypic and genotypic perspectives. If a particular red blood cell exhibits both the cell surface antigens designated glycoproteins A and B, we designated the blood type AB. This type of genetics is an example of multiple alleles and which of the following types of dominance? (A) complete dominance (B) co-dominance (C) partial dominance (D) non-dominance

QUESTION 1 Please match the genotypic blood types with their respective phenotypic blood types. Note, you...

QUESTION 1 Please match the genotypic blood types with their respective phenotypic blood types. Note, you may use answer choices more than once and may not use all the answer choices. - A. B. C. D. E. F. G. H. OO : +/- - A. B. C. D. E....

How are the ABO blood types inherited? If a child has the phenotype A, what are...

How are the ABO blood types inherited? If a child has the phenotype A, what are the possible genotypes he could have? What about a child with type AB? What are the possible genotypes of children born to a mother with type AB and a father with type O? Write an in-depth paragraph explaining your answer please.

The distribution of blood types in the United States according to the “ABO classification” is O:45%,...

The distribution of blood types in the United States according to the “ABO classification” is O:45%, A:40%, B:11%, and AB:4%. Blood is also classified according to Rh type, which can be negative or positive and is independent of the ABO type (the corresponding genes are located on different chromosomes). In the U.S. population, about 84% are Rh positive. Sample two individuals at random and find the probability that: (a) both are A negative (b) one of them is O and...

.For alleles controlling the ABO blood types, the relationship between the IA and i alleles is?...

.For alleles controlling the ABO blood types, the relationship between the IA and i alleles is? The relationship between the IA and IB alleles is? . a.Complete dominance, codominace b.Codominance, complete dominance c.Complete dominance, incomplete dominance d.Incomplete dominance, codominance

Give the possible ABO groups for the children of the following matings. Give all possibilities. Father...

Give the possible ABO groups for the children of the following matings. Give all possibilities. Father group O, mother group O ______________________________________________ Father group A, mother group O ______________________________________________ Father group B, mother group O ______________________________________________ Father group AB, mother group O _____________________________________________ Father group AB, mother group AB ____________________________________________ Father group A, mother group A ______________________________________________ Father group AB, mother group AB ____________________________________________ Father group A, mother group A

USE R AND SHOW CODES!! 1.a. There is a theorem that the ratios of blood types...

USE R AND SHOW CODES!! 1.a. There is a theorem that the ratios of blood types O, A, B and AB are 49:38:9:4, respectively. A research team, investigating a small community and obtained the following frequencies of blood type. Blood type Blood Type O A B AB Frequency 87 59 20 4 Test the hypothesis that the proportions in this community do not differ significantly from those in the general theorem. 1.b. The severity of participants' migraines is clinically assessed....

This information relates to the following three questions: ABO blood type is determined by one gene...

This information relates to the following three questions: ABO blood type is determined by one gene with three alleles: IA, IB, and i. - IA and IB are codominant; someone with IA/IB genotype has blood type AB. - IA and IB are dominant over i; someone with IA/i genotype has blood type A, someone with IB/i genotype has blood type B. - i is recessive; someone with i/i genotype has blood type O. Red-green colourblindness is caused by a mutation...

What genotypes would be expected for the offspring from the following matings? What are the phenotypic...

What genotypes would be expected for the offspring from the following matings? What are the phenotypic ratios for each cross? Explain how you came up with this ratio? a. AABB x aaBB b. AaBB x AABb c. AaBb x aabb d. AaBb x AaBb

QUESTION 46 Which one of the following is a human blood type? ABO- Rh+ E+ B-...

QUESTION 46 Which one of the following is a human blood type? ABO- Rh+ E+ B- Rh 1 points QUESTION 47 Which one of the following statements correctly describes activities of muscles? All muscles shorten when they contract. All muscles are attached to bones. All muscles produce movement. All muscles are under conscious control. All muscles are synergistic. 1 points QUESTION 48 Which one of the following tissues can respond to the environment by generating electrical signals? dermis...

Subjects