Fossils are often washed together on-site in a large bath which can allow water and contaminants in the form of contemporary DNA to permeate into the porous bones.

化石通常在大浴池中进行现场清洗，这可以使水和现代 DNA 形式的污染物渗透到多孔骨骼中。

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Once synthesized, the histones move into the cell nucleus, where a section of DNA wraps around them to form a structure that resembles beads, or knots, on a string.

一旦合成，组蛋白就会进入细胞核，细胞核内的 DNA 片段会将组蛋白包裹起来，形成一种类似串珠或绳结的结构。

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Some researchers think that DNA origami proves microscopic material can be controlled to form specific objects, including smaller circuits.

一些研究人员认为DNA折纸证明可以控制微观材料使其形成特定物体，包括更微型的电路。

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This is - what this diagram shows you is-- the forces that hold these individual strands of DNA into a double stranded form.

你们可以看看这个图表,演示了连接两条DNA长链为双螺旋,结构的化学力

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Estrogen can combine with this receptor to form a new sort of unit which interacts with DNA.

雌激素能够与受体相结合,形成一个新结构单位与DNA相互作用

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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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It took several days to "write" the DNA form of the book, and even longer to read it back.

WSJ: Harvard Researchers Turn Book Into DNA Code

Biologist James Watson and physicist Francis Crick realized our DNA molecules form a three-dimensional double helix in 1953.

CNN: 5 cool things DNA testing can do

These symbols represent the four basic chemical letters, or bases, the body uses to form DNA--guanine, cytosine, adenine and thymine.

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