DNA bases

[roseeblosssom]

I was doing a question and it asked me to draw the base pairs in DNA and how they join together. I understand the that A-T (2 bonds) and C-G (3 bonds) but when having to physically draw it, I'm confused as to where the bonds join to each base? Or how the bases join together??

The data book just confused me even more, with the way they drew their bases.

If anyone could help, that'd be great thanks!

[psyxwar]

Remember that it is hydrogen bonds that form, so it has to be between a hydrogen and NOF (with fluorine not being present in the bases).

[jgoudie]

The easiest way to look at it is remember the hydrogen bonds form on the left hand side of the bases as the are draw in the databooklet.  The Chemisode video on DNA show where these bonds are formed at around the 9min mark.  See link below.

http://youtu.be/PKBy7u8Kb00?t=8m59s

I was doing a question and it asked me to draw the base pairs in DNA and how they join together. I understand the that A-T (2 bonds) and C-G (3 bonds) but when having to physically draw it, I'm confused as to where the bonds join to each base? Or how the bases join together??

The data book just confused me even more, with the way they drew their bases.

If anyone could help, that'd be great thanks!

[Alwin]

Or drawing straight onto the databook
(just quoting my old post on the chem thread)

[roseeblosssom]

Thanks!