Both primed in situ labeling (PRINS) and peptide nucleic acid (PNA) technologies have emerged as research techniques, but they have quickly evolved to applications in biological diagnosis assays. The two procedures present several features (specificity, discriminating ability, rapidity) that make them very attractive for cytogenetic purposes. The combined use of PRINS and PNA for in situ chromosomal detection on a same cell preparation is described in this chapter.
Key Words: PRINS; PNA; in situ labeling; chromosomes; aneuploidy.
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