Question

AB Blood grouped persons have a and b antigen and no antibody and O blood grouped persons have no antigen and a and b antibody then why not there difference in immunity for these persons of two blood groups ? Dare to explain

Answer 1

I know question is tough and no one can dare to answer

Answer 2

sorry if this doesn't help, http://www.ncbi.nlm.nih.gov/books/NBK2267/ this is what i found ,

Answer 3

Well try but not sufficient

Answer 4

the most important fact to be kept in mind is that antibodies are highly specific. Now your question is that AB blood group persons have no antibody ( hence should be more prone to diseases ) whereas O blood group persons have antibodies (hence should be more resistant to diseases) . Your blood group antibodies, anti-A (antibody against blood group antigen A) and anti-B (antibody against blood group antigen b) , recognize only blood group antigens and nothing else , they cannot bind to any other pathogen and thus cannot provide you protection from them.

So 4 different persons having four different blood groups A , B , AB , O respectively will be equally immune to say tuberculosis bacteria because they contain antibodies that recognize this bacteria and kill it on binding with it.. Each of these individuals will definitely possess different blood group antibodies but that has nothing to do with their immunity against tuberculosis bacteria because they simply don't recognize tuberculosis bacteria.

In simple words antibodies against blood group antigens no way determine the immunity levels of a person. Persons with different blood groups can have equal immunity.

Answer 5

hi! if you are happy with your answer please close this question and give a medal to the person who has given the best response!