The DNA molecule is compounded from many smaller molecules.

脱氧核糖核酸分子是由许多更小的分子组成的。

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But the DNA molecule is passive.

但是DNA分子是被动的。

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Francis Crick, with James Watson in 1953 with a model of their DNA molecule.

1953年，弗兰西斯克里克与詹姆斯·沃特森制造了DNA分子。

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The DNA molecule here has been spread apart, opening up two single stranded DNA's which have complementary base sequences because they were double stranded DNA.

这里DNA分子被分开,形成两条单链DNA,这两条单链碱基序列互补,因为它们是由双链DNA解旋形成的

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When these nucleotides get polymerized to form a long DNA molecule they all get polymerized in exactly the same way, the chemistry is the same.

当这些核苷酸多聚化,形成一条长链DNA分子时,它们的聚合方式和,化学结构都完全相同

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Now, in your book, there's an example of plasmid where I've given you the exact sequence of nucleotides that makes up the whole double stranded DNA molecule.

现在在你们书里,有个质粒样本,我将组成这个双链DNA分子的,核苷酸序列写在这里了

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The laser detectors on the machines aren't sensitive enough to see a single DNA molecule.

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And if that were possible, could the modified DNA molecule then be closed back up?

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Two lasers read fluorescent chemical tags that have been attached to the DNA molecule.

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