What is the most common blood type?

Question

What is the most common blood type?

Answer 1

A+

Answer 2

o+

Answer 3

It is O+, but, since it is my blood group,  I think of it as the most popular blood group.

Answer 4

O+  39% of the population has this blood type.

Answer 5

It depends on the country.  In the US, Canada, and Australia, O+ is the most common.  In many northern European countries, A+ is the most common.  But, nearly everywhere O+ and A+ are the two most common blood types.

Answer 6

i think it is o+

Answer 7

O+. It has been in existence when the human species formed. Then came O-, A±, B±, due to mutations in the blood cell structure in the O+ cell, and finally AB±, which formed 500 years ago due to interbreeding within the A± and B± 'species'.