How Do Viability Stains Usually Distinguish Between Living Cells and Dead

question 79

Multiple Choice

How do viability stains usually distinguish between living cells and dead cells?

• A) The chemical stain is taken up by living cells and once metabolized becomes fluorogenic.
• B) The dye specifically targets intact cytoplasmic membranes.
• C) The chemical fluoresces only when bound to ribosomes that are actively synthesizing proteins.
• D) The dye's fluorescence is quenched by dead cells.

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