GFP (Green Fluorescent Protein)

Green Fluorescent Protein (GFP) is a protein originally found in jellyfish that glows bright green under ultraviolet light. Scientists use it as a marker in biology because they can attach GFP to other proteins or genes. When exposed to UV or blue light, GFP emits a vivid green glow, allowing researchers to track and observe biological processes in living cells and organisms in real-time. This helps in understanding how cells function, how diseases develop, and in developing new treatments. GFP’s ability to produce visible fluorescence makes it a powerful tool for scientific research.