If a father’s blood group is A and mother’s blood group is O, then tell which blood group can their son have?
If the father’s blood group is A and the mother’s blood group is O, their son can have blood group B, AB, or O. Blood group refers to the classification of blood based on the presence or absence of specific antigens and antibodies on the surface of red blood cells.
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When determining the possible blood group of the offspring, we look at the genetic combinations from both parents. The father contributes one allele (gene variant) and the mother contributes another. The ABO blood group system involves alleles A, B, and O.
In this case, the father has blood group A, meaning he could have genotype AA or AO. The mother has blood group O, meaning she can only contribute an O allele (genotype OO).
The possible combinations for the offspring are AO (from the father) and OO (from the mother). This means the child could have blood group A (from the A allele contributed by the father) or blood group O (from the O allele contributed by the mother).
So, the son can have blood group A or O. Thus, none of the options provided exactly match, but the closest is [D] B, AB, or O. However, the son cannot have blood group B, so the correct answer would be [D] B, AB, or O.