It involved nine "major or dominant" and ten modifying genes . 它有九對“主或顯性”基因和十對修飾基因。
It is quite easy to modify genes so that their encoded protein will be secreted , and there are also techniques for targeting proteins in the circulation to particular organs 很容易修飾基因,使它們所編碼的蛋白質(zhì)能被分泌,也有技術(shù)使血液循環(huán)中的蛋白質(zhì)打靶到特殊器官。
One example is maternal inheritance technology , in which modified genes pass down to only the seeds ( the maternal line ) , not to the pollen ( the paternal side ) 方法之一是利用母性遺傳技術(shù):經(jīng)過修飾的基因只會傳給種子(母系) ,而不會傳給花粉(父系) ;這項技術(shù)已經(jīng)在菸草、馬鈴薯及番茄等植物上進行了測試。