ABO blood group, MN blood group and Rh+- explained

What does ABO mean in blood? A system used to group human blood into different types, based on the presence or absence of certain markers on the surface of red blood cells. The four main blood types are A, B, O, and AB. #ABOBoodGroup #RhBloodGroup #MNBloodGroup #genetics #ABOBloodType #BloodGroup #AlleleFrequency #GenotypeFrequency #ABOBloodTypes #ABOBloodGroups #RhBloodGroups #blood #classification #antibodies #transfusion #incompatibility #rhesus #bloodGroupsAndBloodTypes #bloodGroupsVideo #aboBloodTypesExplained #aboBloodGroupSystem #aboBloodTyping #aboBloodGroup #bloodTransfusion #bloodTransfusionNursing #bloodTypeCompatibility #bloodTypesAndRhFactor