anonymous
  • anonymous
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?
Biology
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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anonymous
  • anonymous
I think it is B as well, could it be that the answer page was wrong?
Rushwr
  • Rushwr
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.
Rushwr
  • Rushwr
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)

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Rushwr
  • Rushwr
So I think the answer given should be right !
anonymous
  • anonymous
yea i know but how could the answer be C then?
anonymous
  • anonymous
so it is B?
anonymous
  • anonymous
yes i think it is B
Rushwr
  • Rushwr
no C is correct. !
Rushwr
  • Rushwr
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.
anonymous
  • anonymous
okey so the guy has A so B antigens how could it be that the donor blood has AB like C answer suggests
Rushwr
  • Rushwr
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.
anonymous
  • anonymous
but the answers say the donor blood right? A is de receptor
anonymous
  • anonymous
so if AB gets into A wont the receptor blood agglumerate because A got anti-B
Rushwr
  • Rushwr
nIn AB u don't find either A or B antibodies . So even if u add B blood no change will occur. :)
anonymous
  • anonymous
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
Rushwr
  • Rushwr
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 !
anonymous
  • anonymous
yeah and the receptor has A so has B antibodies right? so if AB gets injected it agglumerates right?

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