Consider two clones, and , having and measured fragment lengths, respectively, where .

However, both these studies used a low resolution technique to type a complex tetranucleotide repeat polymorphism, and thus alleles assigned the same fragment length may be genetically heterogeneous.

At the time, there was community consensus that the optimal fragment length for pairwise end sequencing would be three times the sequence read length.

Each fragment length is considered an allele, and can be used in genetic analysis.

The fragment lengths from single clone analyses that by chance contained cDNAs from the same gene reproduced very accurately.

These fragment lengths reproduce accurately enough to search and count them in mixed analyses applying rigid queries.

Thus, the enzyme will produce one fragment length for each type of microbe present in the sample.

The genetic markers are called RFLP's, for restriction fragment length polymorphisms.

Once the cDNA is synthesized it can be further fragmented to reach the desired fragment length as specified in Table 1.

By chopping up DNA and then lining up the resulting fragments, scientists can detect differences in fragment lengths, which would show individual variations.