How do you turn a signal recorded in the time domain into a frequency domain signal? Measurement of peak areas By use of a Michelson interferometer Fourier transformation None of the above TRUE ANSWER : ? YOUR ANSWER : ?
In immunofluroscence microscopy, fluroscent compounds are attached to bound antibody specific for the subcellular structure an antigen specific for the subcellular structure an antibody specific for the subcellular structure none of these TRUE ANSWER : ? YOUR ANSWER : ?
Why is it advantageous to record many FID signals from the same sample and then add them together? To remove inaccuracies caused by fluctuations in the applied magnetic field To ensure that all target nuclei in the sample have been excited None of these To increase sensitivity TRUE ANSWER : ? YOUR ANSWER : ?
How many possible orientations do spin 1/2 nuclei have when they are located in an applied magnetic field? 4 3 2 6 TRUE ANSWER : ? YOUR ANSWER : ?
What is the name given to the relaxation process due to an interaction between an excited nucleus and the magnetic fields caused by nuclei in molecules moving around in the sample? None of these Spin - spin - spin relaxation Spin - lattice relaxation Spin - spin relaxation TRUE ANSWER : ? YOUR ANSWER : ?
In scanning electron microscopy None of these a specimen is not fixed and then coated with thin layer of a heavy metal a specimen is fixed and then coated with transition metal a specimen is fixed and then coated with thin layer of a heavy metal TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis? Folding Isoelectric point Molecular mass Solubility TRUE ANSWER : ? YOUR ANSWER : ?
When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? The processional frequency of the nucleus increases The nucleus spins faster The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field None of these TRUE ANSWER : ? YOUR ANSWER : ?
Negative staining is a technique used in immunocytochemistry electron microscopy gel electrophoresis light microscopy TRUE ANSWER : ? YOUR ANSWER : ?