Gene Expression Histograms: Normal vs Tumour Tissue Comparison #2167858 (License: Personal Use)

This multi-panel histogram displays gene expression density distributions for nine biological samples, labeled 2 through 9. Samples 2-6 (blue) represent normal tissue, while samples 7-9 (red) represent tumour tissue, revealing elevated and more variable expression in tumours. Two green vertical lines mark biologically relevant expression thresholds used for classification or cutoff determination.

Used in oncology research publications, bioinformatics dashboards, or clinical genomics reports to illustrate differential gene expression between healthy and malignant tissues; supports hypothesis generation and biomarker validation.