Fig. 1. Quantitative fluorescence in situ hybridization (QFISH) to detect telomere length in interphase (A), metaphase (B). QFISH was performed by using Cy3-PNA probe (red) on telomere and the fluorescein isothiocyanate (FITC)-labeled peptide nucleic acid (PNA) probe (green) on centromere of chromosome 2 in interphase (A) and metaphase (B) of patient with trisomy 8.
