Isoantigens are(82, 190-AN 7th) (131, 133-CP)A. Found in some but all members of speciesB. Found in some but not all members of speciesC. Occurs in different biological species, class and kingdomsD. All individuals in a particular speciesAns: BSolution: (Found in some but not all members of species) (82, 190-AN 7th) (131-133-CP)Isoantigens or Alloantigens - alloantigens or isoantigens are found to be present in some but not all members of a species which are able to produce alloantibodies or (isoantibodies) in individuals who are free from the antigensDifferent antigensGroup AntigensForeignMicrobial:Cell walls, pili, enzymes toxins. Drugs:Sedermoid. Environmental:Dust, pollens.AutoantigensSelfThyroglobulin, DNA, corneal tissueIsoantigensBlood:Blood group antigens (ABO, Rh) Tissue:HLA antigensHeteroantigens Heterophile antigens, cross reacting microbial antigensSwimming pool granuloma is caused by