In 1977, Sanger developed a much simpler sequencing method, called “chain termination,” which is today known simply as Sanger sequencing. This technique took advantage of a different type of special nucleotide called a dideoxyribonucleotide, or ddNTP. ddNTPs lack one of the hydroxyl groups present on a normal dNTP, preventing the chemical reaction necessary to add another nucleotide and terminating DNA elongation.
Kaixin Li：Qwen 3.5/VL/Coder的核心贡献者，博士毕业于新加坡国立大学。
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Фото: Hamad I Mohammed / Reuters
。关于这个话题，搜狗输入法下载提供了深入分析
ChadliteA portmanteau of Chad (see above) and lite (to be lesser). Used to describe men who are above average in looks, but not to the level of a Chad.，这一点在WPS官方版本下载中也有详细论述
Трамп высказался о непростом решении по Ирану09:14