Simulating safe and unsafe blood tranfusions

Simulating Safe and Unsafe Blood Transfusions Hypothesis-My hypothesis is that blood type O cannot combine with any other blood type because it is represented by the color white and my guess is that if you combine white with any other blood type (color) it won't change its color. If O is mixed with yellow, blood type A, it won't change in color. If O mixes with blue, blood type B, it won't change color. And …

…Yes<Tab/>No O<Tab/>Yes<Tab/>Yes<Tab/>Yes<Tab/>Yes Conclusion- Blood type AB is a universal receiver. Blood type O is a universal donor but cannot receive from any other blood beside itself. Donors are most in demand for type O blood because it can be received by any other blood type.