Biologists studying wild monkeys sometimes need the genetic material DNA from a particular monkey to determine the animal's parentage.

生物学家研究野生猴子时，有时需要某只猴子的遗传物质 DNA 来确定其亲子关系。

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By analyzing the DNA, the genetic material of the proteins, the researchers could focus on the toxic genes and use them to trace the evolution of snake venom, and from this, the evolution of snakes.

通过对 DNA 及蛋白质中的基因物质进行分析，研究人员可以专注于有毒基因，并利用它们得到蛇毒的进化轨迹，这样也就知道了蛇的进化源。

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In 1952, the "Waring blender experiments" of Alfred Hershey and Martha Chase confirmed DNA as the genetic material.

1952年，阿尔弗雷德·赫尔希和玛莎·蔡斯的“沃林混合实验”证实了 DNA 是遗传物质。

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He is a geneticist who led the effort to map all the human genetic material,DNA.

VOA: special.2009.12.01

They enter the cell after recognizing, they fall apart inside the cell, they reproduce their DNA, or their genetic material using host mechanisms.

在识别细胞后侵入之,它们在细胞内解体,复制自身的DNA,利用宿主的遗传来机制复制自己的DNA

耶鲁公开课 - 生物医学工程探索课程节选

This might be a polio virus, for example. The example I've given here is a virus that contains DNA as its genetic material.

例如 这个应该是,小儿麻痹症病毒,我曾在这里展示过,一种将DNA作为遗传物质的病毒

耶鲁公开课 - 生物医学工程探索课程节选

Today doctors must follow complicated steps to prepare samples, and 10% of DNA material is lost, ruining results.

FORBES: Gold digger

Police said their cold case review of the death may be helped by the recovery of DNA material from the body which is buried at Malton Cemetery.

BBC: Malton Cemetery exhumation date set

Prosecutor Manuela Comodi refuted the testimony from independent forensics experts that cast doubt on the reliability of the evidence, insisting police forensic officers had handled the DNA material properly.

CNN: Amanda Knox: How the four-year court saga unfolded