Ques : In relation to blood groups, positive (+) and negative (-) indicate the presence or absence of what?
A. Blood Sugar
B. Rh Factor
C. Platelets
D. Thyroxine
Ans : B. Rh Factor
Ques : In relation to blood groups, positive (+) and negative (-) indicate the presence or absence of what?
A. Blood Sugar
B. Rh Factor
C. Platelets
D. Thyroxine
Ans : B. Rh Factor