what blood type or types can be found in an offspring if a mother has type a blood and the father has type b blood

If a mother has type A blood and the father has type B blood, their child can have blood type A, B, AB, or O. The probability of each blood type depends on the specific genotypes of the parents, which can be determined using a blood type calculator. However, it is important to note that blood type inheritance is not always predictable and there can be exceptions to the rules.