In immunofluroscence microscopy, fluroscent compounds are attached to none of these bound antibody specific for the subcellular structure an antibody specific for the subcellular structure an antigen specific for the subcellular structure TRUE ANSWER : ? YOUR ANSWER : ?
When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? The nucleus spins faster The processional frequency of the nucleus increases The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field None of these TRUE ANSWER : ? YOUR ANSWER : ?
In FT-NMR, how are nuclei excited? By radio-frequency radiation whose frequency is swept across a predetermined range By an intense pressure None of these By an intense pulse of radiation which contains a wide range of frequencies TRUE ANSWER : ? YOUR ANSWER : ?
What is meant by rotating frame of reference? If the laboratory itself is imagined to be rotated at the Larmor frequency, viewing that individual magnetic moment vectors are fixed in space That the sample is spun rapidly in the applied field None of these That the detector rotates around the sample TRUE ANSWER : ? YOUR ANSWER : ?
Negative staining is a technique used in electron microscopy gel electrophoresis immunocytochemistry light microscopy TRUE ANSWER : ? YOUR ANSWER : ?
How do you turn a signal recorded in the time domain into a frequency domain signal? Fourier transformation By use of a Michelson interferometer None of the above Measurement of peak areas TRUE ANSWER : ? YOUR ANSWER : ?
How many possible orientations do spin 1/2 nuclei have when they are located in an applied magnetic field? 3 6 4 2 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis? Solubility Folding Molecular mass Isoelectric point TRUE ANSWER : ? YOUR ANSWER : ?
An FT-IR instrument record a signal in the frequency domain time domain both (a) and (b) none of these TRUE ANSWER : ? YOUR ANSWER : ?