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- Posts: 31
- Joined: Sat Jul 25, 2009 9:37 pm
I have two questions
1) Why does adenine always pair thymine and cytosine always pair with guanine
2) why does the Cytosine-Guanine bond contain 3 hydrogen bonds whereas the adenine-thymine contain 2 hydrogen bonds
I know about purine (A and G) and pyrimidine bases (T and c)
I know why A and G cant bond and why T and C cant bond but I don't get wh A cant bond with either C or T
the same applies for G.