脱氧核糖核酸告诉身体如何建立蛋白质。
DNA told the body how to build proteins.
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没有信使核糖核酸，也就产生不了蛋白质。
Without messenger RNA, no protein was produced.
标本保存了14，000岁人的蛋白质和脱氧核糖核酸。
The specimens preserved 14,000-year-old human protein and DNA.
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