Blood Type Inheritance Table
| Parent Blood Types | Possible Child Blood Types | Impossible Child Blood Types |
|---|---|---|
| O + O | O | A, B, AB |
| O + A | A, O | B, AB |
| O + B | B, O | A, AB |
| O + AB | A, B | O, AB |
| A + A | A, O | AB, B |
| A + B | AB, A, B, O | |
| A + AB | A, B, AB | O |
| B + B | B, O | A, AB |
| B + AB | A, B, AB | O |
| AB + AB | A, B, AB | O |