Question:
Which of the following is not a fluorescence dye?
Which of the following is not a fluorescence dye?
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Understand the difference between fluorescent dyes and tracking dyes in molecular biology applications.
Updated On: June 02, 2025
- Alexa Fluor
- Green fluorescent protein (GFP)
- Red fluorescent protein (DsRed)
- Xylene cyanol
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The Correct Option is D
Solution and Explanation
Xylene cyanol is a tracking dye used in gel electrophoresis to visualize DNA or RNA migration. Unlike Alexa Fluor, GFP, and DsRed, which emit fluorescence and are widely used in imaging studies, Xylene cyanol does not have fluorescent properties.
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