遗传一般指亲代的性状又在子代表现的现象。但在遗传学上,指遗传物质从上代传给后代的现象。如父亲患色盲,女儿视觉正常,但她由父亲得到色盲基因,并能将此基因传给她的儿子,使儿子患色盲。故只从性状上看,父亲有色盲性状,而女儿没有,但从基因连续性来看,代代相传,因而认为色盲是遗传的。 Genetics generally refers to the phenomenon that progeny traits manifest themselves in offspring. But in genetics, refers to the phenomenon of genetic material passed from the previous generation to future generations. If the father suffers from color blindness and the daughter has normal vision, she gets a color-blind gene from her father and can pass this gene on to her son, causing her son to become color-blind. Therefore, only from the traits, the father of color-blind traits, but the daughter did not, but from the perspective of genetic continuity, from generation to generation, so that color blindness is genetic.