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    Blood Types and Alleles

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    What blood type(s) can a child born to a mother with B- blood type and a father with A+ blood type have? Explain your answer fully. Be sure to focus on the concepts of dominant and recessive alleles, multiple alleles, and codominance in your explanation.

    Are there any special concerns this mother should consider?

    How do you think O can be the most common blood type when O is recessive?

    Describe another trait in humans that shows multiple alleles.

    © BrainMass Inc. brainmass.com April 1, 2020, 10:35 pm ad1c9bdddf
    https://brainmass.com/biology/genetics/blood-types-and-alleles-578391

    Solution Preview

    It's possible, but only if both parents carry the recessive "O" gene and recessive negative Rh factor.

    Every person has two genes that will determine their blood type. This is called a genotype. They receive one of those genes from their mother and one of those genes from their father.

    Genotype.................Phenotype
    AA.............................A blood
    AO............................A blood
    BB............................B blood
    BO............................B blood
    AB.............................AB blood (co dominant) ...

    Solution Summary

    Overview of the results of a Type B- mom with a Type A+ dad, with genetic blood type calculator.

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