本题目来源于试卷: Unity and Diversity A.2 Nucleic Acids，类别为 IB生物学
[单选题]
How did radioisotopes he ;q.pwv3tyia:hod u4:k c0ea3lp make the investigations by Hers y2ryu pzl.j j0(cmo1z4 7:lidhey and Chase possibler10 pj y:z lu2zcy(omi j4dl7.?
A. They identified the helical shape of DNA.
B. They tracked elements that are incorporated into cells.
C. They separated mixtures according to size and charge.
D. They stopped DNA replication for base sequencing.
参考答案: B
本题详细解析:
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