ATI RN
Immune System Multiple Choice Questions and Answers PDF Questions
Question 1 of 5
The first tenet of clonal selection theory relies SPECIFICALLY on
Correct Answer: D
Rationale: Clonal selection posits each B-cell clone has a unique receptor; joinings , mutations , and splicing support diversity, not the first tenet.
Question 2 of 5
The antibody which is found in secretions is:
Correct Answer: D
Rationale: IgA is predominant in secretions; others (A-C) are not.
Question 3 of 5
Which of these cells are involved in cell-mediated immunity?
Correct Answer: C
Rationale: T-cells drive cell-mediated immunity; B cells are humoral.
Question 4 of 5
Monoclonal antibodies recognize a single:
Correct Answer: C
Rationale: Monoclonal antibodies target a specific epitope (antigenic determinant), not a whole antigen or bacterium.
Question 5 of 5
After the contact with foreign antigens, body produces specific antibody. These specific antibodies are readily detectable in serum following primary contact with antigen after:
Correct Answer: C
Rationale: Antibodies are detectable 5-7 days post-primary exposure, reflecting the adaptive response lag.