Ou heredity I love it!
So we have our Punnett square- (sorry about the a. Bad handwriting, and b. Chalkboard) - with max (AB) and Ava (AA) which we would then fill in to look like this- (photo 1)
So it’s 50/50 for their children to have blood type A, and 50/50 for the kids to have blood type AB, and impossible for them to have blood types B, or O.
I am a middle schooler, and if I am wrong or worded something incorrectly please tell me so I can learn it! Thank you and hope this helps!