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Stains Used in Electron Microscopy Such as Phosphotungstenic Acid and Uranyl

Question 44

Multiple Choice

Stains used in electron microscopy such as phosphotungstenic acid and uranyl acetate are preferred over organic dyes because they ____________________, thus interact with the high-energy electrons more effectively.


A) are cheaper
B) have a brighter color
C) contain heavy atoms
D) bind better
E) are soluble

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