A woman of blood group AB marries a man of blood group A. Whose father was of group O.What is the probability of children.
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Explanation:
Father is Group AB and carries A and B genes (A/B)
Mother is Group A and could be A/A or AO
AB x AA = 50% AA and 50% AB
AB x AO = 25% AB, 25% AO, 25% AB, 25% BO
Both are Rh positive but could be homozygous (+/+ or +/-)
Rh +/+ x Rh +/+ = 100% Rh +/+
Rh +/+ x Rh +/- = 50% Rh +/+ and 50% Rh +/- (all Rh + phenotype)
Rh +/- x Rh +/- = 25% Rh +/+, 50% Rh +/- (both + phenotype) and 25% Rh -/- (negative phenotype)
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