基因的定义

​关于基因的定义，Molecular Biology of the Cell 给出的解释是：

gene: Region of DNA that is transcribed as a single unit and carries information for a discrete hereditary characteristic, usually corresponding to (1) a single protein (or set of related proteins generated by variant post-transcriptional processing), or (2) a single RNA (or set of closely related RNAs).

From Molecular Biology of the Cell Sixth Edition, Bruce Alberts et al. (2015) Garland Science