Why Do We Have Different Blood Groups ? : āĻāĻŽāĻžā§° āĻāĻŋāύā§āύ āĻāĻŋāύā§āύ ā§°āĻā§āϤ āĻā§āĻ āĻāĻŋāϝāĻŧ āĻĨāĻžāĻā§ ?
- Blood groups are determined by antigens. : ā§°āĻā§āϤ āĻā§āĻ Antigen ā§° āĻĻā§āĻŦāĻžā§°āĻž āύāĻŋā§°ā§āϧāĻžā§°āĻŋāϤ āĻšāϝāĻŧāĨ¤
- Antigens are special markers on red blood cells. : āĻ ā§āϝāĻžāύā§āĻāĻŋāĻā§āύāĻŦā§ā§° Red Blood Cells ā§° āĻāĻĒā§°āϤ āĻĨāĻāĻž āĻŦāĻŋāĻļā§āώ āĻāĻŋāĻšā§āύāĨ¤
- The main blood groups are A, B, AB, and O. : āĻŽā§āĻā§āϝ ā§°āĻā§āϤ āĻā§āĻāϏāĻŽā§āĻš āĻšā§āĻā§ ABO Blood Group System āĻ āύā§āϏāĻžā§°ā§ A, B, AB āĻā§°ā§ OāĨ¤
- Some people also have Rh factor (+ or −). : āĻāĻŋāĻā§āĻŽāĻžāύ āĻŽāĻžāύā§āĻšā§° Rh Factor āĻĨāĻžāĻā§ (+ āĻŦāĻž −)āĨ¤
- These traits are inherited from parents. : āĻ āĻŦā§āĻļāĻŋāώā§āĻā§āϝāϏāĻŽā§āĻš āĻĒāĻŋāϤā§-āĻŽāĻžāϤā§ā§° āĻĒā§°āĻž āĻŦāĻāĻļāĻāϤāĻāĻžā§ąā§ āϞāĻžāĻ āĻšāϝāĻŧāĨ¤
- Blood groups are important for safe blood transfusions. : āύāĻŋā§°āĻžāĻĒāĻĻ Blood Transfusion ā§° āĻŦāĻžāĻŦā§ āϏāĻ āĻŋāĻ ā§°āĻā§āϤ āĻā§āĻ āĻāĻžāύāĻž āĻ āϤā§āϝāύā§āϤ āĻā§ā§°ā§āϤā§āĻŦāĻĒā§āϰā§āĻŖāĨ¤
Key Point: Blood groups differ because of inherited antigen markers on red blood cells. āϞāĻžāϞ ā§°āĻā§āϤāĻāĻŖāĻŋāĻāĻžāϤ āĻĨāĻāĻž āĻŦāĻāĻļāĻāϤ āĻ ā§āϝāĻžāύā§āĻāĻŋāĻā§āύ āĻāĻŋāĻšā§āύ⧰ āĻŦāĻžāĻŦā§ āĻŽāĻžāύā§āĻšā§° ā§°āĻā§āϤ āĻā§āĻ āĻāĻŋāύā§āύ āĻšāϝāĻŧāĨ¤