Can two o blood types have an type offspring?

No, two O blood type parents cannot have an offspring with type A blood.

To determine the possible blood type of offspring, we can use a Punnett square.

Blood type O (OO)

Blood type O (OO)

The possible offspring genotypes are:

OO (type O)

OO (type O)

Therefore, two O blood type parents can only have offspring with type O blood.