sequence ladder

se·quence lad·der

the array of bands, made conspicuous by labeling, when DNA fragmented by endonucleases is subject to gel electrophoresis; corresponds to the nucleotide sequence.

se·quence lad·der

(sē'kwĕns lad'ĕr)
The array of bands, made conspicuous by labeling, formed when DNA fragmented by endonucleases is subjected to gel electrophoresis; corresponds to the nucleotide sequence.
References in periodicals archive ?
Tumor 5 was shown to have only a single sequence ladder despite a seven-base pair shift in the sequence of the homologous allele (Fig.
It prepares standards, extracts the sample, digests proteins, modifies chemicals, generates DNA or peptide sequence ladders and extends primers.