It is an important process of cytogenetics to study the structures and functions of chromosome, the main carrier of genetic material DNA.

染色体作为主要的遗传物质DNA载体，研究它的结构和功能是细胞遗传学必不可少的重要环节。

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DNA is the most important genetic material. So the method and technique of DNA extracting is the basic method for biochemistry, molecular biology and recombinant DNA technology.

DNA是最重要的遗传物质，因此，DNA的提取方法和技术是生物化学及分子生物学最基本的技术，也是生物工程最常用的技术。

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The experiment could open the door to production of artificial organisms whose original genetic material is replaced entirely by man-made DNA, the researchers said.

研究人员称，这项试验打开了一扇门，可以用人造dna完全替换细菌原有的遗传物质制造出人工生物体。

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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

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

It breaks down into its component parts and I show two of those component parts here, one is the genetic material, in this case DNA, and the other is all the proteins that form the structure of the virus.

分解为自身各种零件,这里给你们展示一下其中的两个,其一是遗传物质,这里指DNA,另一个是构建病毒结构的所有蛋白质

耶鲁公开课 - 生物医学工程探索课程节选

What comes out is a mess of data, strings of genetic material where it is not always easy to tell what DNA comes from what microbe.

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