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Blood type in humans is determined by multiple alleles. A cross between two individuals is shown in the Punnett square below. What must the phenotype of the parents be to produce the results shown?

Blood type in humans is determined by multiple alleles. A cross between two individuals-example-1
User Mkonovalov
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Answer:

top of square would be AB

left of square would be AO

User Cyril Beschi
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