The frequency of precession, the transition frequency and the Larmor frequency are different terms for the same frequency different terms for the different frequency same terms for the same frequency same terms for the different frequency TRUE ANSWER : ? YOUR ANSWER : ?
The sequence of amino acids in proteins can be determined by means of All of these partial cleavage of the original polypeptide into smaller polypeptides identification of the -NH2 terminal amino acids identification of the -COOH terminal amino acids TRUE ANSWER : ? YOUR ANSWER : ?
When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? None of these 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 TRUE ANSWER : ? YOUR ANSWER : ?
What is meant by rotating frame of reference? That the sample is spun rapidly in the applied field None of these That the detector rotates around the sample If the laboratory itself is imagined to be rotated at the Larmor frequency, viewing that individual magnetic moment vectors are fixed in space TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis? Isoelectric point Solubility Folding Molecular mass TRUE ANSWER : ? YOUR ANSWER : ?
In scanning electron microscopy a specimen is fixed and then coated with transition metal 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 thin layer of a heavy metal TRUE ANSWER : ? YOUR ANSWER : ?
In immunofluroscence microscopy, fluroscent compounds are attached to an antibody specific for the subcellular structure none of these an antigen specific for the subcellular structure bound antibody specific for the subcellular structure TRUE ANSWER : ? YOUR ANSWER : ?
How do you turn a signal recorded in the time domain into a frequency domain signal? By use of a Michelson interferometer Fourier transformation Measurement of peak areas None of the above TRUE ANSWER : ? YOUR ANSWER : ?
Negative staining is a technique used in electron microscopy immunocytochemistry light microscopy gel electrophoresis TRUE ANSWER : ? YOUR ANSWER : ?