What is the science behind naming of blood groups? Like what is that blood contains which makes it O-positive or O-negative?
In: 10
So red blood cells have proteins on them. the O type have none which is why they are universal givers, A type has one set of proteins and B type another. Essentially A is triangles attached to the cell and B squares. The protein type not in your body your body will attack so a O person will have antibodies against both triangles (A) and Squares (B)
Then there is the rhesus factor which you either have or not. If you are rh+ you can recieve any blood if you are rh- you have to have rh- blood because again you have antibodies against rh+.
https://www.blood.co.uk/news-and-campaigns/the-donor-magazine-summer-2017/blood-group-basics/
More info can be found here
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