Microbiology

#6  Macrophages perform the final job of removing tissue debris and other products of infection.  Indicate some of the possible effect when these scavengers cannot successfully complete the work of phagocytosis.  (1pt.)

#11  A patient with chronic diarrhea was found to lack IgA in his secretions, although he had a normal level of serum IgA.  What was this patient found to be unable to produce?  (1pt.)

#14  A woman with blood type A+ once received a transfusion of AB+ blood.  When she carried a type B+ fetus, the fetus developed hemolytic disease of the newborn.  Explain why this fetus developed this condition when another type B+ fetus in a type A+ mother was normal.  (2pts.)