Did a quick blood type test in school juz now and finally I found out that I'm AB! Rare seh.. Even the people at the booth was like, "So far only found 2 people who have AB blood!" And she wanted to tell Mr Poh. When I asked why, she said, "So that can donate blood! Need more AB blood!" Hah, that's where she's wrong! People with AB blood can receive blood from any blood group! But only another person with AB blood can receive the blood we donate! :D Oh, my eldest bro is AB too if I'm not mistaken. OoooOoooooo!

AB0 blood grouping system

According to the AB0 blood typing system there are four different kinds of blood types: A, B, AB or 0 (null).

Blood group A
If you belong to the blood group A, you have A antigens on the surface of your red blood cells and B antibodies in your blood plasma.

Blood group B
If you belong to the blood group B, you have B antigens on the surface of your red blood cells and A antibodies in your blood plasma.

Blood group AB
If you belong to the blood group AB, you have both A and B antigens on the surface of your red blood cells and no A or B antibodies at all in your blood plasma.

Blood group 0
If you belong to the blood group 0 (null), you have neither A or B antigens on the surface of your red blood cells but you have both A and B antibodies in your blood plasma.

Blood transfusions – who can receive blood from whom?

People with blood group 0 are called "universal donors" and people with blood group AB are called "universal receivers."

Of course you can always give A blood to persons with blood group A, B blood to a person with blood group B and so on. But in some cases you can receive blood with another type of blood group, or donate blood to a person with another kind of blood group.

The transfusion will work if a person who is going to receive blood has a blood group that doesn't have any antibodies against the donor blood's antigens. But if a person who is going to receive blood has antibodies matching the donor blood's antigens, the red blood cells in the donated blood will clump.

People with blood group 0 are called "universal donors" and people with blood group AB are called "universal receivers."

Interesting read from here. This site's animation is not bad at all! Do play the games yea? Btw, if u don't know ur blood type, drop by TP Applied Science School Biomedical Science booth for a quick blood-typing test! And while you're at it, drop by Biotech booth too kk? ;) Hehe, promote keperr...