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Plus reactions worked differently: they used T4 DNA polymerase, an enzyme with strong 3’ to 5’ exonuclease activity, meaning it can chew back the end of a DNA strand. In the presence of only one dNTP, T4 DNA polymerase would degrade each fragment from its 3’ end until it reached a nucleotide complementary to that dNTP, at which point the exonuclease activity would be inhibited. This ensured that all fragments in a given plus reaction ended with the same nucleotide.。旺商聊官方下载对此有专业解读
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Фото: Sanil Nath / wikipedia
В поселке Рефтинский Свердловской области бывший муж расправился с матерью шестерых детей, предварительно, из-за недавнего развода. Об этом сообщает Telegram-канал Mash.。下载安装 谷歌浏览器 开启极速安全的 上网之旅。是该领域的重要参考