The product of a PCR should be a fragment or fragments of DNA of defined length. Many techniques can be used to detect amplified sequences (see Table).
|-EtBr staining (UV transilluminator, image analyzer)
-Southern blotting (hybridization with labeled probe)
-Incorporation of label into amplifying sequence
|-Agarose or polyacrylamide gel
|Hybridization with labeled probe|
|Voltage-initiated chemical reaction/photon detection|
|Radioactive or fluoescent-based DNA sequencing|