例句與造句

1. The chloroplast shsp gene was screened from the cdna library of tomato flower by pcr strategy and confirmed by sequencing . but difference was found at 3 bases of the sequence from the reported in genbank . then , an integrated vector prok ii of the chloroplast shsp gene and nptii gene ( a kanamycin resistant gene ) with camv35s promoter was constructed and introduced into tomato mediated by agrobacterium tumefaciens lba4404 . transgenic tomato were screened by their ability of growing on media containing kanamycin
   本實驗采用pcr方法從番茄花cdna文庫中克隆到葉綠體shsp基因，經(jīng)測序證實與genbank中已發(fā)表的序列在編碼區(qū)相差2個堿基，其中一個堿基導致1個氨基酸的改變。將葉綠體shsp基因定向克隆于帶有組成性表達啟動子camv35s的植物表達載體prok中，凍融法轉(zhuǎn)化農(nóng)桿菌lba4404 ，利用葉圓盤法對番茄進行ti質(zhì)粒介導的遺傳轉(zhuǎn)化。
2. It's difficult to find integrating vector in a sentence. 用integrating vector造句挺難的