Blood type - Wikipedia

ABO blood group system - Wikipedia

Diego antigen system - Wikipedia

Diego antigen system - Wikipedia

Blood sugar level - Wikipedia

A person has type A blood group while his wife has type B. They have four children each with a different blood group of the ABO system. Can you explain how this

Visualizing The Most Widespread Blood Types in Every Country

Visualizing The Most Widespread Blood Types in Every Country

File:Blood typing by manual tube method - type O positive.jpg - Wikipedia

ABO blood group system - Wikipedia