Question

1. how many blood types are there?
2. what is difference between positive and negative in blood types?
3. rarest blood type and most common blood type( Answer properly for BRAINILEST )​

Answer 1

Answer:

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.

Answer 2

Answer:

1. there are 4 main blood groups

2.the difference between positive and negative blood is that positive blood consists of RH factor on the surface of the red blood cells whereas negative blood doesn't consist of RH Factor on the surface of the red blood cells

3.AB Negative is rarest blood type and most common blood type is O Positive