The cytoplasm of plasma cells stained with methyl green-pyronin appears rose in color.

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Multiple Choice

The cytoplasm of plasma cells stained with methyl green-pyronin appears rose in color.

Explanation:
Methyl green-pyronin differentiates DNA from RNA in tissue sections: DNA is stained green, while RNA is stained pink to rose by pyronin. Plasma cells have a cytoplasm rich in RNA because of abundant ribosomes and rough endoplasmic reticulum, so their cytoplasm takes on a rose color with this stain. The nucleus, containing DNA, remains green, giving a two-tone appearance. So seeing rose-colored cytoplasm indicates high RNA content, which is characteristic of plasma cells stained this way.

Methyl green-pyronin differentiates DNA from RNA in tissue sections: DNA is stained green, while RNA is stained pink to rose by pyronin. Plasma cells have a cytoplasm rich in RNA because of abundant ribosomes and rough endoplasmic reticulum, so their cytoplasm takes on a rose color with this stain. The nucleus, containing DNA, remains green, giving a two-tone appearance. So seeing rose-colored cytoplasm indicates high RNA content, which is characteristic of plasma cells stained this way.

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