Which of the following experimental methods is not used to determine three-dimensional structures of biological macromolecules?
A. Nuclear magnetic resonance spectroscopy
B. Fluorescence spectroscopy
C. X-ray crystallography
D. Cryo-electron microscopy
Answer: Option B
Related Questions on Biological Tools and Techniques
Which concentration of ethanol (ethyl alcohol) is the most effective as a disinfectant?
A. 100%
B. 70%
C. 50%
D. 25%
Which of the following method works primarily by denaturing proteins?
A. Ultra filtration
B. Heat
C. UV radiation
D. None of the above
Dioxins and furans are two toxic gaseous pollutants which can be measured by
A. GC - MS
B. TLC
C. ICP - AES
D. AAS
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