question 1-14 in humans blood type is determined by the a, b, and o alleles. the a and b alleles are codominant to each other and dominant over the o allele. an individual with the ao genotype and an individual with the bb genotype can produce offspring with which of the following phenotypes? a ab or a only b ab or b only c a, b, or o only d a, b, ab, or o

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# Brief Explanations:
1. First, determine the possible gametes from each parent:
   - Parent 1: Genotype $ AO $, so possible gametes are $ A $ and $ O $.
   - Parent 2: Genotype $ BB $, so possible gametes are $ B $ (since both alleles are $ B $).
2. Then, create a Punnett square to find the possible offspring genotypes:
   - When $ A $ (from $ AO $) combines with $ B $ (from $ BB $): Genotype $ AB $, Phenotype $ AB $.
   - When $ O $ (from $ AO $) combines with $ B $ (from $ BB $): Genotype $ BO $, Phenotype $ B $ (since $ B $ is dominant over $ O $).
   - Wait, no—wait, the question is about an individual with $ AO $ and an individual with $ BB $? Wait, no, the original question: "An individual with the $ AO $ genotype and an individual with the $ BB $ genotype can produce offspring with which of the following phenotypes?"
   - Wait, let's re - do the Punnett square:
     - Parent 1 (AO) can give $ A $ or $ O $.
     - Parent 2 (BB) can only give $ B $.
     - So the possible offspring genotypes are $ AB $ (when $ A $ from parent 1 and $ B $ from parent 2) and $ BO $ (when $ O $ from parent 1 and $ B $ from parent 2).
     - The phenotype of $ AB $ is $ AB $, and the phenotype of $ BO $ is $ B $ (because $ B $ is dominant over $ O $). Wait, but the options: Let's check the options again. Wait, maybe I misread the question. Wait, the options are:
       - AB or A only
       - AB or B only
       - A, B, or O only
       - A, B, AB, or O
     - Wait, let's recalculate:
       - Parent 1: AO (gametes: A, O)
       - Parent 2: BB (gametes: B, B)
       - Cross 1: A (from AO) and B (from BB) → AB (phenotype AB)
       - Cross 2: O (from AO) and B (from BB) → BO (phenotype B, since B is dominant over O)
       - So the possible phenotypes are AB and B. So the correct option is "AB or B only".
# Answer:
AB or B only (the option corresponding to "AB or B only" among the given options)

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