DNA Structure and Replication

ID #1126

I'm wondering how you tell the difference between adenines, cytosines, etc. That is probably really obvious, but I'm just not sure I know how to identify them.


You would recognize an adenine or guanine by the double ring structures, and cytosine, thymine and uracil by the single ring structures. In a future class, you might be asked to identify the differences in structures beyond that, but not this one. If it's thymine, it's DNA, and if it's uracil, it's RNA, but for C, A, and G, you'd have to be shown the atoms at the 2' carbon of the sugar to determine if it's deoxyribose or ribose.

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