GRE Biochemistry, Cell And Molecular Biology Subject Test

An ELISA (enzyme-linked immunosorbent assay) detects a target molecule using:

Radioactively labeled antibodies (RIA method) Enzyme-conjugated antibodies producing a colorimetric signal Fluorescent dyes that stain all proteins nonspecifically Electric current to detect protein migration

Correct Answer:

Enzyme-conjugated antibodies producing a colorimetric signal

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