...变,他称之为;由一个种变为另一个新种是一个大的进化步骤,不是靠微小突变的积累,而是靠所谓的系统突变(systematic mutation),即涉及整个染体组的遗传突变而实现的,他称之为大进化。
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系统突变假说 systemic mutation hypothesis
生殖系统突变 Germ line mutation
突变系统 PCR-ARMS ; Scorpions-ARMS ; multi-ARMS ; amplification refractory mutation system
扩增阻滞突变系统 ARMS ; Amplification Refractory Mutation System
扩增阻碍突变系统 ARMS
碍突变系统 Amplification refractory mutation system ; ARMS
扩增受阻突变系统 ampiification refractory mutation system
称扩增障碍突变系统 amplification refractory mutation system ; ARMS
多重扩增突变系统 multiplex amplification refractory mutation system ; MULTI-ARMS
扰乱这一化学系统会带来可怕的后果。脑研究者发现在一些罕见的例子中,影响这些化学物质的基因突变会导致人体肥胖。
Disturbing this chemical system can have dire effects - brain researchers have found that in rare instances, gene mutations that affect these very chemicals can cause obesity in people.
很显然,任何能够进化的系统,都离不开遗传学家们所说的突变,其本质是随机事件。
In any system that will evolve it is quite clearly necessary that you have what the geneticists have called mutations, essentially random events.
基因突变时会引发肿瘤,但是是一个老鼠的免疫系统能攻击和摧毁的。
When mutated, the gene causes a tumor, but one that the rat's immune system can attack and destroy.
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