Post-UTME Biology 2012 Objective — Question 12
Question 12 of 19 from the Post-UTME Screening (Post-UTME) Biology 2012 Objective paper, with the correct answer and a full explanation.
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During blood transfusion, agglutination may occur as a result of the reaction between
- A. similar antigens and antibodies
- B. contrasting antigens and antibodiesCorrect
- C. two different antigens
- D. two different antibodies
Explanation
Agglutination (clumping) occurs when antibodies react against incompatible (contrasting) antigens on donor red blood cells.
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