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- It means that except targeted mutation (TM ), there exits non targeted mutation (NTM), which is the result of genetic instability induced by DNA damaging agents. 即DNA损伤剂除了能直接作用于细胞遗传物质而造成损伤部位的定标性突变(targeted mutation,TM)外,还可能通过诱导某些基因的表达或功能改变导致DNA复制差错,从而在未损伤部位形成非定标性突变(non targeted mutation,NTM)。
- Our teacher has mutation of sounds suddenly. 我们的老师突然语音发生了变化。
- The company has targeted a profit for the year. 公司已经规定了今年的利润指标。
- The torpedo homed in on its target. 鱼雷射向目标。
- Chatlines are targeted at teenagers. 聊天电话线的主要顾客是青少年。
- targeted mutation 定点突变
- The company has met their export target. 该公司已经实现了它们的出口目标。
- A stationary target is easiest to aim at. 静止的目标是最容易瞄准的。
- He shot an arrow, but it fell short of the target. 他射了一箭,但没有射中靶。
- He won't hit the target at that distance. 他打不中那样远的目标的。
- Shots were fired at the enemy target. 有人向敌军目标开枪。
- You missed the target by a mile/by miles. 你远未中的。
- He fired several shots (at the target). 他向目标射出了几发子弹。
- Formation or development of a mutation. 变异的形成或者发展
- To undergo or cause to undergo mutation. 经历变化或使经历变化
- I aimed at the target but hit the wall. 我瞄准了靶射击,但却打在了墙上。
- The movable target on a leveling rod. 视准器水准尺上可移动的目标
- The target's getting lower all the while. 指标一直在下降。
- Mutation are produced by a number of chemicals. 许多化学试剂能产生突变。
- Jack hit the target by a fluky shot. 杰克凭运气击中了靶子。