Chemical Coordination and Regulation Question 86
86. The technique used for estimation of minute amounts of hormones and drugs is called
[1999]
(a) electrophoresis
(b) electroencephalogram
(c) fractionation
(d) radioimmunoassay
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Answer : d
Hints & Solutions
(d) Electroencephalogram is the recording of electric potentials originating from different parts of the brain in the form of waves. Fractionation is the technique of rupturing cells and separating their components especially cell organelles for studying their chemistry and functions. Electrophoresis is the technique of separation of charged solutes on the basis of their differential migration in an applied electric field.
