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Nyren’s sequencing method earned the name “pyrosequencing” since it revolved around the production of pyrophosphate. At first, pyrosequencing could sequence only short DNA snippets, with a few nucleotides. In 1996, however, Nyren’s lab demonstrated sequencing of up to 15 bases by using a modified “A” nucleotide to reduce their signal-to-noise ratio.7 In 1998, they increased this to 34 bases by adding another enzyme, called apyrase, to the mix; apyrase degraded unincorporated nucleotides, removing the need for constant wash steps.

2015年,中国人民银行发布的《关于加强远期售汇宏观审慎管理的通知》写道,为完善宏观审慎管理框架,防范宏观金融风险,促进金融机构稳健经营,将对开展代客远期售汇业务的金融机构,收取外汇风险准备金。代客,指银行受客户委托而办理业务。

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Аналитик рассказал о судьбе Ирана через пять недельАналитик Риттер: США рассчитывали, что война в Иране продлится несколько недель。关于这个话题,91视频提供了深入分析

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