What are the 4 types of blood groups?
There are 4 main blood groups (types of blood) – A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD positive or RhD negative, which means in total there are 8 blood groups.
What does ABO mean on blood test?
Blood type tests categorize your blood according to the major human blood group (ABO) system. A person’s ABO type depends upon the presence or absence of two genes — the A and B genes. These genes determine part of the configuration of the red blood cell surface. Possible ABO blood groups include O, A, B, or AB.
Which blood group is the best?
Type O negative
Type O negative red blood cells are considered the safest to give to anyone in a life-threatening emergency or when there’s a limited supply of the exact matching blood type. That’s because type O negative blood cells don’t have antibodies to A, B or Rh antigens.
What is the difference between ABO and Rh blood groups?
The main difference between ABO blood group and RH blood group is that ABO blood group is determined by the presence or absence of A and B antigens on the surface of the red blood cell whereas RH blood group is determined by the presence or absence of D antigen on the surface of the red blood cell.
What kind of antibodies do ABO blood groups have?
The immune system forms antibodies against whichever ABO blood group antigens are notfound on the individual’s RBCs. Thus, a group A individual will have anti-B antibodies and a group B individual will have anti-A antibodies. Blood group O is common, and individuals with this blood type will
Which is the least common blood group O or AB?
individual will have anti-B antibodies and a group B individual will have anti-A antibodies. Blood group O is common, and individuals with this blood type will have both anti-A and anti-B in their serum. Blood group AB is the least common, and these individuals will have neither anti-A nor anti-B in their serum.
How are red blood cell antigens determine your blood group?
Red blood cell antigens determine your blood group The antigens expressed on the red blood cell determine an individual’s blood group. The main two blood groups are called ABO (with blood types A, B, AB, and O) and Rh (with Rh D-positive or Rh D-negative blood types).
Why is the ABO blood group important to evolution?
The ABO blood group antigens also appear to have been important throughout our evolution because the frequencies of different ABO blood types vary among different populations, suggesting that a particular blood type conferred a selection advantage (e.g., resistance against an infectious disease.)