本题目来源于试卷: Continuity and Change D.1 DNA Replication，类别为 IB生物学
[单选题]
Which of the following are examples of discoveries made us;xeucv ;9ux uz*o78pcing radioact; 7b)np as7by ho/ 1uu;ioqp;bive isotopesboa) 1qpsi 7;bbny; /7h uu;op?
I. Discovery of the light-dependent photosynthesis pathways using the $^14$C and $^12$C isotopes.
II. Discovery of DNA as the main genetic material using the $^32$P and $^35$S isotopes.
III. Discovery of the semi-conservative replication of DNA using the $^15$N and $^14$N isotopes.
A.
B.
C.
D.
参考答案: C
本题详细解析:
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