What are two major blood types?

Answer 1

O positive and O negative

Cheers!

Answer 2

Blood Type
(En español: Grupo sanguíneo)

Say: blud type

Every person has a blood type. There are four major types, each with a different chemical marker that's attached to a person's red blood cells. These markers determine if someone has type A blood, type B blood, type O blood, or type AB blood. Each blood type can also be positive (+) or negative (-), just to make things a little more complicated! It's important that doctors know which blood type you have if you're going to have surgery, just in case you need some extra blood. But in an emergency, anyone can safely receive O-negative blood, regardless of his or her blood type.


Hope this helps!

Answer 3

I read somewhere that Mexicans and Indians had the most common blood type and it was 0. that's mine.

Type A is common among Europeans like a full blood German has for sure type A blood.

Then the last is the least blood type found is Type B which is mainly found in Africa and among Arabians.
Most of the African Americans has a mixture of blood types and do not have a true type B blood type. they have A/B negative which is european and ethopian blood types.
If your a white man with type B blood there is some Ethopian in there somewhere.

Answer 4

A+ and 0+ are the most common blood types

Answer 5

A and B are pretty equal (they are the most common). And then comes AB. the least common blood type is OO

Answer 6

If you mean the 2 largest it's A and O

Answer 7

O+ we can give blood to anyone, but can only recieve the same type.

Answer 8

A positive and O positive

Answer 9

i think that the two MAJOR ones are A and O

Answer 10

A+