【正文】
’s cloning? 克隆 一詞是英文單詞 clone的音譯,作為名詞, clone通常被意譯為無性繁殖系。同一克隆的所有成員的遺傳構(gòu)成是完全相同的,例外僅見于有突變發(fā)生時。 人們開始探索用人工的方法來生產(chǎn)高等動物克隆。 目前,生產(chǎn)哺乳動物克隆的方法主要 有 胚胎分割 和 細(xì)胞核移植 兩種??寺游?,采用的都是細(xì)胞核移植技術(shù)。由于細(xì)胞核移植是產(chǎn)生克隆動物的有效方法,故人們往往把它稱為 動物克隆技術(shù) 。 What animals have been cloned? Scientists have been cloning animals for many years. The creation of Dolly is the first mammal cloned from the cell of an adult animal. Since Dolly, researchers have cloned a number of large and small animals including sheep, goats, oxen, mice, pigs, cats, rabbits and so on. All these clones were created using nuclear transfer technology (細(xì)胞核移植技術(shù) ).