This is because this is the Blood type O is the oldest blood group.

This invention relates to histo-blood group O alleles of baboon.

If the mother is type AB or B and the father is type O, their child can have type B blood.

This is because this is the Blood type O is the oldest blood group.

This is why people with blood group O are the main meat-eaters of the Blood Group Diet.

O-negative blood group is reasonably unusual compared to other blood groups.

O can only receive from blood type O, and is the universal blood type donor.

Can a parent with A positive blood have a O negative child?

– O can only receive from blood type O, and is the universal blood type donor.

The universal blood donor (you can give to anyone) is blood type O-.

We are the same blood type, O negative, the universal donor.

It is believed that mosquitoes prefer blood type O.

There are certain kinds of blood that are preferred like blood type O.

3 - Blood group: It seems that people belonging to the blood group O are more frequently victims of mosquito bites.

Women with O blood type or Rh negative blood factor might have babies with higher bilirubin levels.