On the image, you can see the results of a DNA microarray used for cancer prognosis, where tissue samples from healthy and cancerous tissues were analyzed. cDNA from healthy cells and cancer cells were labeled with green and red fluorescence, respectively, mixed equally, and hybridized with the chip. It is known that gene A is more highly expressed in breast cancer type I, while genes B and C have lower expression in type II, which is highly aggressive. Based on the gene expression levels shown in the image, the cancer sample does not correspond to either type I or type II breast cancer, why is that?

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Genomic studies

Genomic studies (genomics) is the study of the whole genome of an organism. Using bioinformatics and high-performance computing, genomic researchers examined massive amounts of deoxyribonucleic acid (DNA)-sequence data to discover variations or mutations that affect drug response, health, or disease. Genomics is a much younger discipline than genetics, having only emerged in the last few decades as a result of technological advancements in DNA sequencing and computational biology.