DNA is the main hereditary substance of biological object. The study on DNA is the basis of exposing biological heredity secrets.
DNA是生物体主要的遗传物质，有关DNA的研究是揭示生物遗传奥秘的基础。
DNA is the main hereditary substance of biological object. The study on DNA is the basis of exposing biological heredity secrets.
DNA是生物体主要的遗传物质，有关DNA的研究是揭示生物遗传奥秘的基础。
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