Which of the following is true of centrocytes? (Select all that apply.)
a. Somatic hypermutation has occurred.
b. They are large proliferating cells.
c. Isotype switching is complete.
d. They produce secreted forms of immunoglobulins.
e. They lack MHC class II molecules on the cell surface.
A,C
You might also like to view...
Which of the following terms means narrowing of the trachea?
A) tracheostomy B) tracheoectasis C) tracheosclerosis D) tracheostenosis
Which of the following is a plant source of omega-3 fatty acids?
A. walnuts B. flaxseeds C. canola oil D. all of the above
Volleyball is an example of ________
A) lifestyle physical activities B) active aerobics C) flexibility exercises D) active sports and recreational activities
Which best characterizes a dynamic warm-up?
A. brief intervals of plyometrics B. passive stretching C. PNF stretching D. calisthenics of increasing intensity