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anonymous

  • one year ago

WILL FAN& MEDAIL okey so I had this question in IBO 2001: A 59. Erythrocytes of man with blood group A are mixed with blood plasma of another man. No agglutination is observed. It can be concluded that the blood group of the plasma donor is: A. only B. B. A or 0. C. A or AB. D. A, B or 0. The answer page said C but shouldn't the answer be B as 0 can give to any blood type and A can mix with A?

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  1. anonymous
    • one year ago
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    I think it is B as well, could it be that the answer page was wrong?

  2. Rushwr
    • one year ago
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    Blood type A has anti-B antibodies and blood type B has anti-A antibodies. They interfere with each other - the antibodies start to invade and destroy eachother's red blood cells and cause clumping.

  3. Rushwr
    • one year ago
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    Blood group A has only A antigen on red cells (and B antibody in the plasma) Blood group b has only B antigen on red cells (and A antibody in the plasma) Blood group AB has both A and B antigens on red cells (but neither A nor B antibody in the plasma) Blood group o has neither A nor B antigens on red cells (but both A and B antibody are in the plasma)

  4. Rushwr
    • one year ago
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    So I think the answer given should be right !

  5. anonymous
    • one year ago
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    yea i know but how could the answer be C then?

  6. anonymous
    • one year ago
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    so it is B?

  7. anonymous
    • one year ago
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    yes i think it is B

  8. Rushwr
    • one year ago
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    no C is correct. !

  9. Rushwr
    • one year ago
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    When u have A antigen anti-A antibodies will not be produced by them .if B type blood is injected into their systems, anti-B antibodies in their plasma will recognize it as alien and burst or agglutinate the introduced red cells in order to cleanse the blood of alien protein.

  10. anonymous
    • one year ago
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    okey so the guy has A so B antigens how could it be that the donor blood has AB like C answer suggests

  11. Rushwr
    • one year ago
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    Blood group AB has both A and B antigens on red cells (but neither A nor B antibody in the plasma) So if A blood was mixed with this it won't identify it as an alien.

  12. anonymous
    • one year ago
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    but the answers say the donor blood right? A is de receptor

  13. anonymous
    • one year ago
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    so if AB gets into A wont the receptor blood agglumerate because A got anti-B

  14. Rushwr
    • one year ago
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    nIn AB u don't find either A or B antibodies . So even if u add B blood no change will occur. :)

  15. anonymous
    • one year ago
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    when AB is the one receiving A or B indeed but not when it is the donor blood right? because A and B have antibodies against the opposite thing

  16. Rushwr
    • one year ago
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    Blood group A has B antibodies Bloood group B has A antibodies Blood group AB has no A or B antibodies Blood group O has both A and B antibodies !

  17. anonymous
    • one year ago
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    yeah and the receptor has A so has B antibodies right? so if AB gets injected it agglumerates right?

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