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149835 Microbiology

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

AMyco kansasi
BMyco. avium intracellulare
CMyco. scrofiilaceum
DM. marinum
Microbiology
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149838 Pathology

A 23-year-old man complains of stiffness and pain in his lower back that causes him to awaken at night. He first noticed morning stiffness in his lower back during his college years. He also describes occasional pain in his right eye and sensitivity to light. An X-ray of the sacroiliac region shows fusion of the small joint spaces in the posterior spine and ossification of the intervertebral discs. Serologic tests for rheumatoid factor and antinuclear antibodies are negative. This patient most likely expresses which of the following human leukocyte antigen (HLA) haplotypes?

AB15
BB19
CB27
DB31
Pathology
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