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HT Histotechnician

Category - Staining

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This is a natural dye derived through the extraction from the heartwood of a Mexican tree.

Orcein
Saffron
Hematoxylin
Cochineal dye

Explanation

Answer: C - Hematoxylin
Hematoxylin is a natural dye derived through the extraction from the heartwood of a Mexican tree. The active coloring agent in this dye is hematin, which is formed by the oxidation of hematoxylin. All the other options are not extracted from the heartwood of a Mexican tree.

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