This image is of a normal HER2/neu sample. There are 2 green centromere signals and 2 orange HER2/neu signals.
This image is of an amplified HER2/neu sample. There are 2-4 green centromere signals indicating that there are 2-4 chromosomes in each cell. There are about 50 orange signals, indicating that there are about 50 HER2/neu copies.