He and his U.C.S.D. colleagues removed taste cells from the tongues of laboratory mice and compared the genes that were expressed (that is, gave rise to proteins) in each cell.

• 他和UCSD的同事从实验小鼠的舌头中取出味觉细胞，并比较每一个细胞中表现出来的基因（蛋白质是根据基因上的编码而来）。