| 摘要 |
The invention relates to oligonucleotide probes attached to discrete particles wherein the particles can be grouped into a plurality of sets based on a physical property. A different probe is attached to the discrete particles of each set, and the identity of the probe is determined by identifying the discrete particles from their physical property. The physical property includes any that can be used to differentiate the discrete particles, and includes, for example, size, flourescence, radioactivity, electromagnetic charge, or absorbance, or label(s) may be attached to the particle such as a dye, a radionuclide, or an EML. In a preferred embodiment, discrete particles are separated by a flow cytometer which detects the size, charge, flourescence, or absorbance of the particle. The invention also relates to methods using the probes complexed with the discrete particles to analyze target nucleic acids.
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