Question

Nucleus is stained by

• A. basic dyes like haematoxylin
• B. acidic dyes like haematoxylin
• C. basic dyes like eosin
• D. acidic dyes like eosin

Answer 1

The correct option is A basic dyes like haematoxylin

H&E staining is the combination of two histological stains: haematoxylin and eosin. The basic haematoxylin stains acidic cell structures like nuclei blue, and acidic eosin stains the basic structures like extracellular matrix and cytoplasm pink, with other structures taking on different shades, hues, and combinations of these colours.