Question

The blood group phenotypes with only one kind of antigens of blood groups in them.

• A. $A{B}^{+ve}$ and $O^{-ve}$
• B. $A^{-ve}$ and $B^{-ve}$
• C. $O^{+ve}$ and $A{B}^{-ve}$
• D. $A^{+ve}$ and $B^{+ve}$

Answer 1

The correct option is B $A^{-ve}$ and $B^{-ve}$

• The ABO blood group system is based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. Antigens are present on the RBC and antibodies in the serum.
• A person is having blood group A denotes he is having antigen A on the RBC and anti B antibodies in the serum. And blood group B denotes Antigen B on RBC and Anti A antibodies in serum.
• The -ve indicates the absence of Rh antigen on RBC. Hence A(-ve) and B(-ve) are the blood group phenotypes with only one kind of antigens of blood groups in them.

So, the correct answer is option B.