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BOF 5
In Immunoglobulins …….all are true except:
1-IgA is mainly found in body fluids
2-IgM is a high molecular weight immunoglobulin that
is the largest of all immunoglobulins
3-IgG is the only one that passes the placental
barrier
4-IgE is involved in Type IV hypersensitivity
reactions
5-IgD is found on the surface of B cells and may be
involved in the maturation of them
Answer 4
1-true……hence IgA deficiency may cause chronic or
repeated sinu-plumonary and GIT infections
2-agglutinating one
3-hence the passive neonatal immunity and false
positive neonatal screening for many infections (actually from the mother!!)
4-type I ……….a famous thing
5-yes….actually its function is still not that 100%
…..Has a very low serum level
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