Human Chromosomes (IMAGE) Instituto de Medicina Molecular Caption Metaphase chromosomes from ALT cancer cells (U2OS osteosarcoma cell line) depleted for FANCM. Telomeric DNA is in green, chromosomal DNA is in red. The arrowheads point to telomeric DNA dissociated from chromosomes, which indicates severe telomere dysfunction. Credit Bruno Silva Usage Restrictions Always use credits. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.