Mr. Ram has 'A' blood group and his wife is 'B'. Can their son be 'O' ? Explain?

Dear student,

They can have a progeny possessing blood-group O but it not necessary whether it would be a son or a daughter. This is because blood-grouping shows codominance . ABO blood groups are controlled by gene I and it is not sex-linked.

Hope this answer will clear your doubts about the topic.
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