By using the complementation test an unknown mutant can be rapidly assigned to a particular gene.采用互补测验可迅速地将某一未知突变型归属于某一特定基因.When the cells were then shifted to an enriched medium, the mutant cells proliferated.然后,当细胞移入一...
Inhibition of chlorophyll synthesis may be caused by etiolation, mutant blocks, or streptomycin.叶绿素合成可以由黄化 、 突变性阻塞或链霉素而引起.When the cells were then shifted to an enriched medium, the mutant cells proliferated.然后,当细胞移入一种滋养...
Cut them off cleanly through the stem just below the node.就从茎节下面，沿茎干把它们全砍掉。The stinging nettle has a square stem and little hairs.荨麻长有四方茎和细小茸毛。He chewed the stem of his pipe and eyed her sceptically.他嘴里衔着烟斗柄，满腹狐疑地打量着她。...
Some stockbrokers, in collusion with bank officials, obtained large sums of money for speculation.一些股票经纪人和银行职员串通一气，通过炒买炒卖赚了不少钱。Stockbrokers direct stock exchange and buy and sell for their clients.股票经纪人指导交易为客户买进卖出.Stockb...
再过几天球芽甘蓝就可以吃了。In a few days time the sprouts will be ready to eat.蛞蝓会破坏长出的新芽。Slugs play merry hell with emerging shoots.春天到了, 所有树木都绽出了新芽.Spring is coming; all the trees are pushing out new shoots....
The western-most part of north Wales is a stronghold of Welsh-speakers.北威尔士最西部是说威尔士语人的聚居区。Go north on I-15 to the exit just past Barstow.沿着15号州际公路一直向北，一过巴斯托就从出口驶出。You can go anywhere and still the compass points north or...
她关掉了煤气,够机灵的.She was intelligent enough to turn off the gas.她有一双机灵的大眼睛.She has large, intelligent eyes.除了一条上好的胳膊,你还有一副机灵的头脑.In addition to your good right arm you have your subtle brain....