Fig. 2From: Genome wide noninvasive prenatal testing detects microduplication of the distal end of chromosome 15 in a fetus: a case reportA Amniotic fluid karyotype analysis showing additional genetic material on the distal end of the long arm of chromosome 18q23 (arrow). B Sequential metaphase FISH analysis utilizing sub-telomeric probes for chromosome 15 (green) and chromosome 18 (red), showing three green signals: two on the normal 15q, and the yellow signal representing a single fusion located on the distal long arm of chromosome 18Back to article page