| 单词 | mutations |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔aberration〕Changes in chromosome structure are called chromosomal mutations or aberrations.染色体结构的改变称为染色体突变或畸变。英汉大词典〔gene〕Gene mutations are alterations in the DNA code.基因突变是指 DNA 密码的改变。牛津搭配〔genotoxin〕A chemical or other agent that damages cellular DNA, resulting in mutations or cancer.基因毒素：损害细胞脱氧核糖核酸的化学制剂或其它制剂，会引发突变或癌症美国传统〔mutation〕Mutations were introduced in the region using various techniques.人们运用各种技术把变种引入这个地区。牛津搭配〔mutation〕Cells become cancerous after subtle mutations occur that prevent them from carrying out their proper function.由于发生的微妙变化阻止了细胞发挥正常功能, 细胞发生了癌变。外研社新世纪〔mutation〕Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使发生了某些突变的基因存活下来，另一些则消亡了。剑桥高阶Environmental pressures encourage genes with certain mutations to persist and others to die out.环境的影响使突变的基因存留而其它的消亡。剑桥国际Some people with red-cell mutations such as thalassaemia and sickle cell anaemia inherit an immunity to malaria.有些红细胞突变的人，如地中海式贫血病人和镰状红细胞贫血病人遗传对疟疾的免疫。剑桥国际 |
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