Which of the following infection(s) can be diagnosed by the use of polymerase chain reaction?
A. HIV-1 and HIV-2 viruses
B. Hepatitis B virus
C. Mycobacterium tuberculosis
D. All of these
[#]
10. Which of the following theory of antibody production is most widely accepted?
A. Side chain theory
B. Clonal selection theory
C. Direct template theory
D. Indirect template theory
[#]
11. Negative phase is observed in
A. secondary humoral response
B. primary humoral response
C. both (a) and (b)
D. none of the above
[#]
12. Which of the following condition is non-suppurative sequelae of Streptococcus pyogenes infections?
A. Acute rheumatic fever
B. Acute glomerulonephritis
C. Erythema nodosum
D. All of these