Question

Match the blood groups with the antibodies present in plasma.

	Blood group		Antibody
A	A	p	B
B	B	q	A
C	AB	r	Nil
D	O	s	A and B
		t	A, B and O

• A. A-p, B-q, C-r, D- s
• B. A-p, B-q, C-t, D-s
• C. A-q, B-p, C-r, D-s
• D. A-q, B-p, C-r, D-t

Answer 1

The correct option is A A-p, B-q, C-r, D- s

• People having blood group A will have antibodies against antigen B, i.e., antibody B in their plasma.
• Blood group B people will have antibodies against antigen A, i.e., they have antibody A in their plasma.
• People having AB blood group will not have any antibodies in their plasma because they have both the antigens A and B on their cell surface.
• People with the O blood group will have both A and B antibodies in their plasma because they don't have either of the two antigens.

Thus, the correct answer is option A.