Q.

Negative Staining is used for examining

A. virus particles
B. protein molecules
C. bacterial flagella
D. virus particles, protein molecules and bacterial flagella
Answer» D. virus particles, protein molecules and bacterial flagella
Explanation: in negative-staining the electron opacity of the surrounding field is increased by using an electron-dense material such as phosphotungstic acid as a stain. negative staining is particularly valuable for the examination of very small structures such as virus particles, protein molecules and bacterial flagella.
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