日本科学家 克隆培育出581只完全相同的老鼠
<p><span word="Biologists">Biologists</span> <span word="in">in</span> <span word="Japan">Japan</span> <span word="have">have</span> <span word="cloned">cloned</span> 581 <span word="mice">mice</span> <span word="from">from</span> <span word="one">one</span> <span word="original">original</span> <span word="donor">donor</span> <span word="mouse">mouse</span>, <span word="Livescience">Livescience</span> <span word="reported">reported</span>. <span word="The">The</span> <span word="scientists">scientists</span> <span word="made">made</span> <span word="the">the</span> <span word="mice">mice</span> <span word="over">over</span> 25 <span word="generations">generations</span> <span word="of">of</span> <span word="cloning">cloning</span>; <span word="that">that</span> <span word="is">is</span>, <span word="from">from</span> <span word="making">making</span> <span word="clones">clones</span> <span word="from">from</span> <span word="clones">clones</span> <span word="from">from</span> <span word="clones">clones</span>, 25 <span word="times">times</span> <span word="over">over</span>.</p><p>根据<span word="Livescience">Livescience</span>的报道，日本生物学家用一只小鼠的基因供体克隆出581只小鼠。这些科学家们克隆了25代小鼠，即：用克隆鼠克隆新的小鼠，一共克隆了25次。</p><p><span word="They">They</span> <span word="could">could</span> <span word="probably">probably</span> <span word="make">make</span> <span word="animal">animal</span> <span word="clones">clones</span> <span word="indefinitely">indefinitely</span>, <span word="the">the</span> <span word="research">research</span> <span word="team">team</span> <span word="wrote">wrote</span> <span word="in">in</span> <span word="a">a</span> <span word="paper">paper</span> <span word="published">published</span> <span word="last">last</span> <span word="week">week</span> <span word="in">in</span> <span word="the">the</span> <span word="journal">journal</span> <span word="Cell">Cell</span> <span word="Stem">Stem</span> <span word="Cell">Cell</span>.</p><p>研究团队在上周发表在《干细胞》期刊中的论文称，他们很有可能会让动物无休无止地克隆下去。</p><p><span word="Really">Really</span>. <span word="Check">Check</span> <span word="out">out</span> <span word="the">the</span> <span word="last">last</span> <span word="sentence">sentence</span> <span word="of">of</span> <span word="their">their</span> <span word="abstract">abstract</span>: "<span word="Our">Our</span> <span word="results">results</span> <span word="show">show</span> <span word="that">that</span> <span word="repeated">repeated</span> <span word="iterative">iterative</span> <span word="recloning">recloning</span> <span word="is">is</span> <span word="possible">possible</span> <span word="and">and</span> <span word="suggest">suggest</span> <span word="that">that</span>, <span word="with">with</span> <span word="adequately">adequately</span> <span word="efficient">efficient</span> <span word="techniques">techniques</span>, <span word="it">it</span> <span word="may">may</span> <span word="be">be</span> <span word="possible">possible</span> <span word="to">to</span> <span word="reclone">reclone</span> <span word="animals">animals</span> <span word="indefinitely">indefinitely</span>."</p><p>是这样吗？我们来看看论文摘要的最后一句话：“我们的研究结果证明多代克隆是可能实现的。如果技术到位，那么克隆出无穷多代的动物都是可能的。”</p><p><span word="The">The</span> 581 <span word="cloned">cloned</span> <span word="mice">mice</span> <span word="were">were</span> <span word="made">made</span> <span word="using">using</span> <span word="an">an</span> <span word="improved">improved</span> <span word="version">version</span> <span word="of">of</span> <span word="somatic">somatic</span> <span word="cell">cell</span> <span word="nuclear">nuclear</span> <span word="transfer">transfer</span>, <span word="the">the</span> <span word="technique">technique</span> <span word="that">that</span> <span word="created">created</span> <span word="Dolly">Dolly</span> <span word="the">the</span> <span word="cloned">cloned</span> <span word="sheep">sheep</span> <span word="in">in</span> 1996.</p><p>这581只小鼠是用改进后的体细胞克隆技术克隆得到的，这一技术最早是在1996年克隆多莉时发明的。</p>
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