Gel-based assays of PCR products for SNP detection.

The presence of an SNP can be detected by RFLP or AFLP conducted on PCR products, whenever such an SNP generates or destroys a specific restriction site for an enzyme.

SSCP can also be used for detection of SNPs.

However, these methods for the detection of SNPs still need gel-based assays, and therefore,

have recently been taken over by several other methods involving non- gel based assays.