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Regarding Blood groups : Match the following and choose the incorrectly matched / combination least likely to be seen : (each option on 3 columns can be matched to multiple options on the another 2 columns) eg. A-(iv)-3,5; B-(i); C-(iii)-2; D-(ii),(vi),(vii)-1; (iii),(v)-6;

Blood Group Antigens on RBCs Antibodies in Plasma
A. A (i) nil 1. nil
B. B   (ii) A 2. anti-A
C. AB (iii) B 3. anti-B
D. O

( A ) A-(ii)-3; B-(iii)-2; C-(ii),(iii)-1; D-(i)-3
( B ) A-(ii)-3; B-(iii)-2; C-(i)-1; D-(i)-2,3
( C ) A-(ii)-3; B-(iii)-2; C-(ii)-1; D-(i)-2,3
( D ) A-(ii)-3; B-(iii)-2; C-(iii)-1; D-(i)-2

1 Answer

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(B) is the right answer.

A and B group will have antibodies to B and A when they are exposed to these groups usually by adulthood such exposure happens and they have the antibodies. But a AB group can never have no antigen in their blood group. A new born rarely has anti A or anti B antibodies unless it suffers ABO incompatibility Blood Group-Antigens on RBCs-Antibodies in Plasma-Donor’s Group A A anti-B A, O B B anti-A B, O AB A, B nil AB, A, B, O O nil anti-A, B O Though currently the above criteria has changed and groups A, B, AB are strictly infused only with A, B, AB respectively.
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