Homework Help: Biology

Posted by Lilah on Wednesday, January 28, 2009 at 10:57pm.

Two samples of DNA have the same melting point and density. Does this prove that they are from the same species? Explain clearly and back up your reasons.

I read in my notes and all it said was that DNA species isolated from different organisms have different melting temperatures. But I don't know if every single species have a different Tm? Also I coulnd't find anything about density.

Thanks!

Biology - SraJMcGin, Thursday, January 29, 2009 at 10:35am
You may have luck using this GOOGLE Search:

http://www.google.com/search?q=DNA+melting+point+%26+density&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a

Sra

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