【医】 魏斯曼氏学说(后天特性不遗传)

Weismann.August

germ line(Weismann 1865)germ track

reductional division(Weismann 1887);reducing division;meiosis

Weismann's ring(=ring gland)

panmixid (Weismann 1895); random mating

reduction(Weismann 1887)

Weismanns theory

germ-plasm (Weismann 1883，1885)