Genomic instability is one of the defining characteristics of cancer. It refers to an increased rate of DNA mutations, chromosomal rearrangements, and structural abnormalities within a cell’s genome. In healthy cells, DNA is tightly regulated and repaired when damaged. In cancer, these repair systems break down, allowing mutations to accumulate rapidly. This creates a constantly … Continue reading Genomic Instability in Cancer: How DNA Damage Drives Tumor Evolution