Which of the following tests is used to differentiate the chromosome of normal and cancer cells?

Comparative genomic hybridization (CGH) differentiates between cancer and normal cells. Comparative genomic hybridization (CGH) Method that can be used only when DNA is available from a specimen of interest. Mixed in equal amounts and hybridized to normal metaphase chromosomes. Red-to-green ratio is analyzed by a computer program that determines where the DNA of interest may have gains or losses of material.