Two breast carcinomas are compared. Tumor A: Well differentiated, 6 cm, positive axillary lymph nodes. Tumor B: Poorly differentiated, 1 cm, no nodal involvement. Which statement is most accurate?

Which immune cells differentiate into plasma cells that produce antibodies?

A 20-year-old man steps into an elevator full of people with influenza who are coughing and sneezing.  The influenza viral particles that he inhales attach to respiratory epithelium.  Which of the following immune cells is most likely to rapidly destroy the virally infected cells?

The primary function of the RB protein is to:

A child has recurrent bacterial infections caused by defective phagosome function and leukocyte adhesin. Which immunodeficiency disease is most likely?  

A patient receives an allogeneic bone marrow transplant. Two weeks later the patient develops: Diffuse skin rash Jaundice Bloody diarrhea Which complication is most likely?

Most indirect-acting carcinogens are activated by which enzyme system?

A patient experiences seasonal allergic rhinitis every spring. The first exposure to pollen occurred years earlier without symptoms. Which event occurred during that initial exposure?

A patient receives an incompatible blood transfusion. The patient’s antibodies immediately bind donor red blood cells, resulting in hemolysis. This is an example of which hypersensitivity reaction?

Paraneoplastic syndromes occur in approximately what percentage of patients with malignant tumors?