Q.7 Which of the following assays is currently being used for the detection of Helicobacter pylori?
Q.8 An individual was found to be heterolo-gous for IgG1 allotypes 3 and 12. The different possible IgG1 antibodies produced by this individual will never have
(a) Two H chains of allotype 12
(b) Two L chains of either Κ or Λ
(c) Two H chains of allotype 3
(d) Two H chains, one of allotype 3 and one of allotype 12
Q.9 The resting membrane potential
(a) Occurs only in nerve and muscle cells
(b) Is the same in all cells.
(c) Is oriented so that the cell's interior is positive with respect to the extracellular fluid.
(d) Requires the separation of most of the cell's charged particles.
Q.10 Which of the following is NOT part of Koch's postulates?
(a) The microorganism is never found in healthy animals.
(b) The microorganisms is always found in diseased animals.
(c) The microorganism must cause disease in healthy animals.
(d) The microorganism must secrete a toxin in culture.
