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Incomplete, Codominance and Blood Typing Genetics Problems1.Humans can have one of four possible blood types: O, A, B, and AB.A young man has type ABblood and his sister has type O blood.What are their genotypes and the genotypes of theparents?2.A woman with type A blood marries a man with type O blood.They have six children, all ofwhom have type A blood.What are the probable genotypes of the parents?Could they everhave a child with type O blood?3.The lubber grasshopper is a very large grasshopper, and is black with red and yellow stripes.Assume that red stripes are expressed from thehomozygousRRgenotype, yellow stripes fromthe homozygous R’R’genotype, and both from theheterozygousgenotype RR’. What will be thephenotypic ratioof theF1generationresulting from a cross of two grasshoppers, both with redand yellow stripes?4.Cattle have three colors.Red coat color, white coat color, and the heterozygous

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50, 25, ABO blood group system

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