The father has a 4 positive blood group and the mother has a 2 positive. What blood type will their child have?

The father has a fourth blood group with genotype I (A) I (B), the genotype of the father’s Rh factor can be RhRh or Rhrh. The mother has a second blood group with genotype I (A) I (0) or with genotype I (A) I (A), the genotype of the mother’s Rh factor can be RhRh or Rhrh. In this case, children may have: second positive blood group, second negative blood group, third positive blood group, third negative blood group, fourth positive blood group, fourth negative blood group.



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