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核酸是指DNA（脱氧核糖核酸）和RNA（核糖核酸）。它们是生物体中的遗传物质，储存着遗传信息，调节生命活动。核酸的发现历程是指人类对核酸的研究和发现的历史过程。核酸的发现历程可以追溯到19世纪，当时许多科学家都对生命的起源和本质进行了探索。
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