Thank you for reporting, we will resolve it shortly
Q.
What is correct for a person with blood group $O$ ?
J & K CETJ & K CET 2003
Solution:
Landsteiner recognised three blood groups i.e., $A, B$ and $O$. Fourth blood group $AB$ was discovered by Von Decastello and Sturle $(1902)$. The blood group $O$ has no antigens in RBC but contain both antibodies in RBC.