Contemporary Clinical Immunology and Serology 1st Edition by Kate Rittenhouse Olson,Ernesto DeNardin

Exercise 6

A baby was born several months ago and by the age of 2 months has developed a number of bacterial infections from which he is slow to recover. His response to viruses and fungi is not impaired. His older brother, who is 10, has this same problem, but his sister does not. On electrophoresis, we would likely see a(n)
A) increased albumin peak
B) increased beta globulin peak
C) decreased gamma globulin peak
D) increased gamma globulin peak