高2生物-用15N标记的.注:"15N"中的"15"在"N"的左上角,"15"也就类似"N"的质量数(下同14N)用"15N"标记的一个DNA分子放在14N培养基中复制3次,则含15N标记的DNA分子占全部DNA分子的比例为( )25%请问是怎么
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 16:28:03
![高2生物-用15N标记的.注:](/uploads/image/z/14726936-56-6.jpg?t=%E9%AB%982%E7%94%9F%E7%89%A9-%E7%94%A815N%E6%A0%87%E8%AE%B0%E7%9A%84.%E6%B3%A8%3A%2215N%22%E4%B8%AD%E7%9A%84%2215%22%E5%9C%A8%22N%22%E7%9A%84%E5%B7%A6%E4%B8%8A%E8%A7%92%2C%2215%22%E4%B9%9F%E5%B0%B1%E7%B1%BB%E4%BC%BC%22N%22%E7%9A%84%E8%B4%A8%E9%87%8F%E6%95%B0%28%E4%B8%8B%E5%90%8C14N%29%E7%94%A8%2215N%22%E6%A0%87%E8%AE%B0%E7%9A%84%E4%B8%80%E4%B8%AADNA%E5%88%86%E5%AD%90%E6%94%BE%E5%9C%A814N%E5%9F%B9%E5%85%BB%E5%9F%BA%E4%B8%AD%E5%A4%8D%E5%88%B63%E6%AC%A1%2C%E5%88%99%E5%90%AB15N%E6%A0%87%E8%AE%B0%E7%9A%84DNA%E5%88%86%E5%AD%90%E5%8D%A0%E5%85%A8%E9%83%A8DNA%E5%88%86%E5%AD%90%E7%9A%84%E6%AF%94%E4%BE%8B%E4%B8%BA%28+%2925%25%E8%AF%B7%E9%97%AE%E6%98%AF%E6%80%8E%E4%B9%88)
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