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Question
A man with blood group A marries a woman with blood group O and their daughter has blood group O. is this information enough to tell you which of the traits blood group A or O is dominant. why or why not?
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Solution
No,the information is not enough to say A or O is dominant.
- If A is considered to be dominant over O possible combination of father will be - AO and mother will be OO. Thus, daughter can be OO and hence have blood group O.
- If O is supposed to be dominant over A then the possible combinations of father will be - AA,and mother will be OO or OA. Thus, daughter can be OA and hence has blood group O.
From the given information we cannot ascertain which blood group is dominant.
No,the information is not enough to say A or O is dominant.
- If A is considered to be dominant over O possible combination of father will be - AO and mother will be OO. Thus, daughter can be OO and hence have blood group O.
- If O is supposed to be dominant over A then the possible combinations of father will be - AA,and mother will be OO or OA. Thus, daughter can be OA and hence has blood group O.
From the given information we cannot ascertain which blood group is dominant.
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