Which reagent is made from the seeds of the plant Dolichos biflorus?

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Multiple Choice

Which reagent is made from the seeds of the plant Dolichos biflorus?

Explanation:
Dolichos biflorus seeds yield a plant lectin that binds specifically to the A1 antigen on red cells. In ABO testing, this seed-derived lectin is used to identify A1 by causing agglutination of A1 cells, while A2 cells are not strongly agglutinated. Because it reacts with the A antigen, this reagent is effectively used as an Anti-A reagent in certain testing contexts. It’s the Dolichos biflorus seed lectin that serves this role, commonly referred to as the A1-detecting lectin in practice.

Dolichos biflorus seeds yield a plant lectin that binds specifically to the A1 antigen on red cells. In ABO testing, this seed-derived lectin is used to identify A1 by causing agglutination of A1 cells, while A2 cells are not strongly agglutinated. Because it reacts with the A antigen, this reagent is effectively used as an Anti-A reagent in certain testing contexts. It’s the Dolichos biflorus seed lectin that serves this role, commonly referred to as the A1-detecting lectin in practice.

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