Join for Free!
118488 members

Bases and Hydrogen bonds

Genetics as it applies to evolution, molecular biology, and medical aspects.

Moderator: BioTeam

Bases and Hydrogen bonds

Postby jsmith613 » Fri Jan 07, 2011 3:46 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.

Posts: 31
Joined: Sat Jul 25, 2009 9:37 pm

Postby magicsiew » Fri Jan 07, 2011 4:17 pm

U will find answers for all your question here

http://users.rcn.com/jkimball.ma.ultran ... iring.html
Posts: 145
Joined: Sun Jan 24, 2010 3:07 pm

Return to Genetics

Who is online

Users browsing this forum: No registered users and 1 guest