Nucleotide Excision Repair

Nucleotide Excision Repair (NER) is a crucial cellular process that fixes damaged DNA. When our DNA gets altered due to things like UV light or harmful chemicals, NER identifies the problem areas. It then removes the damaged sections of the DNA strand and fills the gaps with the correct nucleotides, effectively restoring the DNA to its original state. This repair mechanism helps prevent mutations that could lead to diseases, including cancer, ensuring that our genetic information remains stable and functional.