Which dye selectively stains the protein components in blood, forming a dark blue or black color when it comes into contact with blood residues?
A. Luminol
B. Amido Black
C. Leucocrystal Violet
D. Acid Yellow 7
Answer:B
Which dye selectively stains the protein components in blood, forming a dark blue or black color when it comes into contact with blood residues?
A. Luminol B. Amido Black C. Leucocrystal Violet D. Acid Yellow 7
Explanation: Amido Black is a dye that selectively stains the protein components in blood. It forms a dark blue or black color upon contact with blood residues, enhancing the visibility of bloody fingerprints on light-colored surfaces.