If someone is blood type O, then their blood contains antibodies for antigens Neither A nor B.
Step-by-step explanation:
The blood group O contains neither the A antigen nor the B antigen. They are healthy in a perfect manner. The people having the group O has the ABO phenotype and stomach ulcers are more common with this group. The person having the blood group A has more common of gastric cancer.
The individuals who have the group O has vWF in lower levels. Protein is linked with blood clotting in the individuals having the group O.The letter "O" refers to "null". This indicates that it contains neither A nor B antigens in it. Rh+ indicates the presence of RH+ antigens.