Differential expression

Differential expression refers to the process where certain genes in a cell are turned on or off, or produce different amounts of their product (like proteins), depending on conditions or stimuli. This variation helps cells adapt and function appropriately in different environments or stages. Scientists study differential expression to understand how genes respond to changes, which can reveal insights into health, disease, or development. It’s like adjusting the volume of different instruments in a symphony to create the desired sound, but in this case, the "instruments" are genes, and the "sound" is the cellular activity they control.