Mutation are produced by a number of chemicals . 許多化學試劑能產(chǎn)生突變。
Spontaneous and induced mutation occur with animals viruses . 動物病毒的突變有自發(fā)突變和誘發(fā)突變。
If the heterocaryon does grow then the mutations are probably non-allelic . 如果異核體能夠生長,那么突變就可能是非等位的。
Suppression is called intragenic when both mutations are within the same gene . 兩個突變發(fā)生在同一基因內(nèi)的抑制,叫基因內(nèi)抑制。
Both frameshift and missense mutations can be suppressed by intragenic suppressors . 移碼突變和異義突變都能被基因內(nèi)抑制基因所抑制。
So far the discussion has centered entirely around mutation in the strict sense . 到目前為止,嚴格來講,討論完全集中于圍繞突變問題上。
Genetic effects include inheritable changes resulting from mutations in reproductive cells . 遺傳的影響包括再生細胞變異引起的遺傳變化。
It was impervious to the shocks and mutations of timeit was an emblem of time itself . 它不受時代的沖擊或變遷的影響,它自己就是時間的象征。
In the narrow sense, the hypothesis implies that mutations in genes result in mutations in enzymes . 在狹義上說,這一假說表示基因突變的結果導致酶的突變。
The physical conditions of each country, as well as the numbers and kinds of its inhabitants, have undergone many mutations . 每一地域內(nèi)的物理條件和土著生物的種類與數(shù)目,都是曾經(jīng)多次變動。