Why Do We Have Different Blood Groups ? : āφāĻŽāĻžā§° āĻ­āĻŋāĻ¨ā§āύ āĻ­āĻŋāĻ¨ā§āύ ā§°āĻ•ā§āϤ āĻ—ā§‹āϟ āĻ•āĻŋāϝāĻŧ āĻĨāĻžāϕ⧇ ?



  1. Blood groups are determined by antigens. : ā§°āĻ•ā§āϤ āĻ—ā§‹āϟ Antigen ā§° āĻĻā§āĻŦāĻžā§°āĻž āύāĻŋā§°ā§āϧāĻžā§°āĻŋāϤ āĻšāϝāĻŧāĨ¤

  2. Antigens are special markers on red blood cells. : āĻ…ā§āϝāĻžāĻ¨ā§āϟāĻŋāĻœā§‡āύāĻŦā§‹ā§° Red Blood Cells ā§° āĻ“āĻĒā§°āϤ āĻĨāĻ•āĻž āĻŦāĻŋāĻļ⧇āώ āϚāĻŋāĻšā§āύāĨ¤

  3.  The main blood groups are A, B, AB, and O. : āĻŽā§āĻ–ā§āϝ ā§°āĻ•ā§āϤ āĻ—ā§‹āϟāϏāĻŽā§‚āĻš āĻšā§ˆāϛ⧇ ABO Blood Group System āĻ…āύ⧁āϏāĻžā§°ā§‡ A, B, AB āφ⧰⧁ OāĨ¤

  4.  Some people also have Rh factor (+ or −). : āĻ•āĻŋāϛ⧁āĻŽāĻžāύ āĻŽāĻžāύ⧁āĻšā§° Rh Factor āĻĨāĻžāϕ⧇ (+ āĻŦāĻž −)āĨ¤

  5.  These traits are inherited from parents. : āχ āĻŦ⧈āĻļāĻŋāĻˇā§āĻŸā§āϝāϏāĻŽā§‚āĻš āĻĒāĻŋāϤ⧃-āĻŽāĻžāϤ⧃⧰ āĻĒā§°āĻž āĻŦāĻ‚āĻļāĻ—āϤāĻ­āĻžā§ąā§‡ āϞāĻžāĻ­ āĻšāϝāĻŧāĨ¤

  6.  Blood groups are important for safe blood transfusions. : āύāĻŋā§°āĻžāĻĒāĻĻ Blood Transfusion ā§° āĻŦāĻžāĻŦ⧇ āϏāĻ āĻŋāĻ• ā§°āĻ•ā§āϤ āĻ—ā§‹āϟ āϜāĻžāύāĻž āĻ…āĻ¤ā§āϝāĻ¨ā§āϤ āϗ⧁⧰⧁āĻ¤ā§āĻŦāĻĒā§‚āĻ°ā§āĻŖāĨ¤



Key Point: Blood groups differ because of inherited antigen markers on red blood cells. āϞāĻžāϞ ā§°āĻ•ā§āϤāĻ•āĻŖāĻŋāĻ•āĻžāϤ āĻĨāĻ•āĻž āĻŦāĻ‚āĻļāĻ—āϤ āĻ…ā§āϝāĻžāĻ¨ā§āϟāĻŋāĻœā§‡āύ āϚāĻŋāĻšā§āύ⧰ āĻŦāĻžāĻŦ⧇ āĻŽāĻžāύ⧁āĻšā§° ā§°āĻ•ā§āϤ āĻ—ā§‹āϟ āĻ­āĻŋāĻ¨ā§āύ āĻšāϝāĻŧāĨ¤