When your blood group is A and your wife A what will be your children blood group?

If both parents have blood group A, their children can have blood groups A or O. This is because the A blood group can be either AA (homozygous) or AO (heterozygous). If both parents are AA, all children will be A. If both are AO, children could be A or O. If one is AA and the other AO, children could also be A or O.