So Mendel had this idea of a gene as an abstract thing, and Darwin built a whole theory that depended on them existing, and then Watson and Crick actually looked and found one.
孟德尔认为基因 是抽象的。 达尔文把自己的整个学说 建立在基因是实体的基础上。 接下来沃森和克瑞特 观察发现了基因的存在。