medical_animation on Instagram: "Blood types are determined by molecules called antigens that sit on the surface of red blood cells. These act as identification markers, helping the immune system recognize which cells belong in the body. The main system for classifying blood is the ABO system, which divides blood into four groups: A, B, AB, and O. Type A has A antigens, type B has B antigens, type AB has both, and type O has neither. Another key component is the Rh factor, which indicates whethe

Explaining The Universe on Instagram: "Blood types are determined by special molecules called antigens that are found on the surface of red blood cells. These antigens act like identification markers, telling the immune system which cells belong in the body. The main classification system is the ABO system, which divides blood into four types: A, B, AB, and O. Type A has A antigens, type B has B antigens, type AB has both, and type O has neither. Another important marker is the Rh factor, which

Blood types

Types of Donation - Donate Blood - The Blood Connection

ABO Blood Grouping System - Circulatory System | CBSE & ICSE Class 10 Biology | BYJU'S Class 10

How Does the Rh Factor Affect Pregnancies? | Britannica

Rh Blood Group, Rh Factor & Erythroblastosis Fetalis