Blood Compatibility

Today in Biology 30 we discussed Blood Compatibility. Here are some pictures before and after the demonstration. Blood Type A was yellow. Blood Type B was blue. Blood Type AB was green (yellow + blue). Blood Type O was clear. If no color change occurred when the two bloods were mixed, then the blood was compatible. For example, in the picture when Blood Type A (yellow) was added to Blood Type A (yellow) the color remained yellow. However, when Blood Type A (yellow) was added to Blood Type B (blue) the color changed to green.