What are the possible blood types of potential offspring between an individual that has type O blood and an individual that has type AB blood? E1.1024

Question

What are the possible blood types of potential offspring between an individual that has type O blood and an individual that has type AB blood?  E1.1024

BlackTom AI · Accepted Answer

First, recall the genetics of blood type: type O corresponds to genotype ii, and type AB corresponds to IAIB. A cross between ii (O) and IAIB (AB) yields gametes i from the O parent and IA or IB from the AB parent. Offspring genotypes, therefore, are IAi (blood type A) or IBi (blood type B).

Option 1: 'O only' is incorrect because neither IAi nor IBi produce blood type O.

Option 2: 'A and O' is incorrect because O is not possible from this cross; the O phenotype would require ii, which cannot arise from an IAIB parent.

Option 3: 'A, AB, and O' is incorrect because AB would require IAIB in the offspring, which cannot come from IAi or IBi genotypes; AB is not produced here.

Option 4: 'A and B' is correct because the only observable blood types from this cross are A (IAi) and B (IBi).

Option 5: 'A, B, and O' is incorrect for the same reason as option 3: O cannot be produced, and AB cannot be produced in this mating.

What are the possible blood types of potential offspring between an individual that has type O blood and an individual that has type AB blood? E1.1024单项选择题

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