PLEASE help me with my DNA project?

Question

I'm supposed to build a model of DNA for school and I am having a lot of difficulty doing this. Does anyone know or could anyone tell me about the parts of DNA and maybe some labeled pictures (and maybe examples of what materials to build it with) so that I can get this done??

Answer 1

You can google it here are some links:
http://images.google.com/images?hl=en&q=DNA&gbv=2

http://www.visionlearning.com/library/module_viewer.php?mid=63&l=&c3
Search engines that help wit homework are:
www.yahooligans.com
www.discoveryschool.com
www.factmonster.com
www.mathnerds.com

PLEZE PICK ME 4 BEST ANSWER!!

Answer 2

Those websites will give you a good idea how they look. But here is a basic overview of how you might start it. You are going two long flexible items (wires probably) that are parallel to each other but twist like a mirror image. The nucleic acids (adenine, thymine, guanine, and cytosine) have to be paired accordingly. A binds to T and G to C. Adenine and guanine are your purines and they are "longer" than your pyrimidines, T and C. So take that into account. To be really specific, in the A - T bond, there meet at 2 points, and the G - C bond meet at 3. So you might want to show the two and three bonds respectively on your model. And also when you twist the opposite strands, you have to account for the grooves which you can see in your picture as a major and minor. This just means it looks like the groove is deeper in one end and not as deep on the other. I hope this helps! I know its sounds a bit complex but the DNA helix is one of my favorite biological structures!!

Answer 3

These links might help.
http://en.wikipedia.org/wiki/DNA
http://encarta.msn.com/encyclopedia_761561874/Deoxyribonucleic_Acid.html
http://encarta.msn.com/encyclopedia_761557775/Genetic_Engineering.html