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1 year, 5 months ago via biology-questions.com

What are the five human blood types?

How many human blood types exist? What blood types are found in the human body?
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twstrldy | 1 year, 5 months ago
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There are actually four phenotypes each linked to one or two genotypes. The four phenotypes are A, B, AB, and O. Each of this can be either positive or negative. An excellent source on the genotype links can be found at the listed source site.

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xds | 1 year, 5 months ago Report

Dont forget blood type C and H , c for cold blooded , H for Hot :P

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ai-ai | 1 year, 5 months ago
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According to http://en.wikipedia.org/wiki/Blood_type, there are currently 30 blood-group systems (including the ABO and Rh systems) that are recognized by International Society of Blood Transfusion. However, the most common blood types are the ABO blood types which are the A, B, AB and O. The other rare blood types are the RH + and the RH -.
According to http://www.canadiancrc.com/paternity_determination_blood_type.aspx, 2 O blood type parents can produce only O blood type child; 2 A blood type parents can produce either A or O blood type child; 2 B blood type parents can produce either B or O blood type child; 1 parent and another B blood type parent can produce either A, B, AB or O blood type child; 1 A blood type parent and another AB blood type parent can either produce A, B or AB blood type child; and 1 A blood type parent and another O blood type parent either can produce A or O blood type child.
I am not a doctor so I cannot give you details on how blood types work and what are the possible consequences when incompatible blood types (they say) combine. For further readings, check on the links given and these sites:
http://www.vaughns-1-pagers.com/medicine/blood-type.htm
http://www.scribd.com/doc/7092157/Human-Blood-Type-Chart
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jlburd | 1 year, 5 months ago
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Hi servicos!

There are four main human blood types but blood typing does not end there...

The four basic or main blood types are A, B, AB and O

The reason I said that blood types do not end there is because there is an additional equation to be made when blood typing is performed which adds an equation to blood typing results.

In blood type A there is an A protein present. In blood type B there is a B protein present. In blood type AB, both the A and B proteins are present and in blood type O there are no A or B blood proteins present.

The Rhesus Monkey (Rh) is another protein that requires testing for in order to type blood. If an A blood sample has tested positive for Rh or Rhesus Monkey protein, then the A blood type then becomes A+ and this works for each blood type providing an extra further 8 different possible blood types.
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