Multiple choice

Which of the following is a basic dye?

  1. Aniline blue

  2. Crystal violet

  3. Orange G

  4. Eosin

  5. Fast green
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Crystal violet is a positively charged stain (cationic) that binds negatively charged groups on protein and nucleic acids. This is also known as a basic dye (stain).

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