Linda Brown Buck is an American biologist best known for her work on the olfactory system. She was awarded the 2004 Nobel Prize in Physiology or Medicine, along with Richard Axel, for their work on olfactory receptors. In their landmark paper published in 1991, Buck and Axel cloned olfactory receptors, showing that they belong to the family of G protein-coupled receptors. By analyzing rat DNA, they estimated that there were approximately one thousand different genes for olfactory receptors in the mammalian genome. This research opened the door to the genetic and molecular analysis of the mechanisms of olfaction. In their later work, Buck and Axel have shown that each olfactory receptor neuron remarkably only expresses one kind of olfactory receptor protein and that the input from all neurons expressing the same receptor is collected by a single dedicated glomerulus of the olfactory bulb. Born in Seattle, Washington, Buck received her B.S. in psychology and microbiology in 1975 from the University of Washington, Seattle and her Ph.D. in immunology in 1980 from the University of Texas Southwestern Medical Center at Dallas. 

January 29th, 1947 in Seattle (Age 77)