He could even control bone formation in the mice with the mutated gene by giving them a diet deficient in tryptophan, the precursor of serotonin.
他甚至通过喂给复合胺前体色氨酸缺乏的饲料来控制变异基因鼠的骨形成。
3
Researching the influence mechanism of every response condition in the new synthetic technology, mainly research the control and controllable conditions on the precursor .