DNA是生物体中储存和传递遗传信息的重要物质。
DNA is an important substance in organism for genetic information storage and transfer.
DNA的主要作用是存储、传递遗传信息，并控制遗传信息的表达。
The main purpose of DNA is to store, to transfer genetic information, and to control the expression of genetic information.
DNA的主要作用是存储、传递遗传信息，并控制遗传信息的表达。
The main purpose of DNA is to store, to transfer genetic information, and to control the expression of genetic information.
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