Blood Groups of Parents and Determinations of the
Blood Group of their Offspring
| Father’s Blood Type | ||||||
| A | B | AB | O | |||
| Mother’s Blood Type | A | A or O | A, B, AB, or O | A, B, or AB | A or O | Possibility of Child’s Blood type |
| B | A, B, AB, or O | B or O | A, B, or AB | B or O | ||
| AB | A, B, or AB | A, B, or AB | A, B, or AB | A or B | ||
| O | A or O | B or O | A or B | O | ||