Adarsh Gupta on Instagram: "Blood Group Transmission🩸 Blood groups are different because our red blood cells have specific proteins called antigens on their surface. These antigens come from our genes, which we inherit from our parents. The main blood group system is the ABO system, which has four types: A, B, AB, and O. Type A has A antigens, Type B has B antigens, Type AB has both, Type O has none. Our blood also contains antibodies in the plasma that fight against foreign antigens. Fo