Body Fluids and Circulation Question 24

24. What is correct for blood group ‘O’?[2001]

(a) No antigens but both $a$ and $b$ antibodies are present

(b) A antigen and $b$ antibody

(c) Antigen and antibody both absent

(d) $A$ and $B$ antigens and $a, b$ antibodies

Show Answer

Answer : a

Hints & Solutions

(a) Blood group ’ $O$ ’ is known as the universal donor since it does not contain antigens.