Select the 2 parents' blood types when prompted to and then press the button to watch the magic happen as the game calculates the expected blood type of the child! Blood types refer to the type of antigen (those spikes on the red blood cell in the bottom right corner) which is on the red blood cell. This is important because your white blood cells decide whether a cell is friend or enemy by determining the antigen of the cell. So, if the wrong blood type is given to a patient in need of a blood donation, then the blood will be rejected (not good!) so choosing the right blood for the right person is VERY important. The 4 blood types are A, B, AB and O (there are also + and - but this game does not feature these)
Based off a hereditary graph I found on google. Most of the chances are random (e.g. A+A can give you A or O) Parent 1 is the cat on the left Parent 2 is the cat on the right The child is the cat in the middle