finalB 05

D

20. The most freąuent transplantations in US are

a) kidney transplantations (^b)) skin transplantations

c) heart transplantaions no one is tnie

21. Mark the phenomenon which is not responsible for creation of tolerance

a)    clonal deletion

O

b)    induction of anergy positive selection in thymus

d) apoptosis

22.

Reumatoid factor is formed mainly by IgMs IgGs

c)    antigens

d)    IgDs

23.    The most important in effector phase of anti-tumor immune response are

a)    lymphocytes B

b)    lymphocytes T    p

NK celis

d) dendntic cells

24.    Monoclonal antibodies

/(f are produced by the same hybrynomas

b)    have the same specificity

c)    have the same specificity but different molecular weight true are a. and b.

of all are tme