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  3. 2 aside from the i alleles mentioned in question 1...

Question: 2 aside from the i alleles mentioned in question 1...

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2. Aside from the I alleles mentioned in Question 1, there are two other genes that when mutated affect ABO blood type inheritance. The first mutant is recessive to wild type and is designated x. A homozygous x individual is phenotypically O for blood type no matter what the genotype is of the / gene. For example, rx or P individuals are O type. The second mutant, is dominant to the wild type Yallele and is designated Y. An individual ing a Y allele is phenotypically blood type O no matter what the genotype is of the / gene. For example, arn a. Propose a biochemical model that explains the O phenotype of the recessive homozygous x individual? Your model should explain the biochemical function of the X gene in a wild type individual and should explain why the x mutation is recessive. (2 marks) b. Propose a biochemical model that explains the phenotype of individuals carrying the dominant Y mutant allele? This model must explain why this mutation is dominant to the wild type Y allele. (2 marks) Banus ution: Baseurmodels witihgene is gerncticl marks)

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