In 1953 Watson and Crick published their famous paper elucidating the double-helix structure of DNA. The two sides are held together via a series of hydrogen bonds. A to T has two hydrogen bonds and C to G has three.
Normally an enzyme is used to break these bonds. However the bonds can also be broken with heat. The temperature at which this occurs is the DNA's melting temperature.
Got that? A DNA's melting temperature is not the temperature in which it melts into a liquid, Kevin.
DNA Melting Temperature:
Note that ‘melting’ in this sense is not a change of aggregate state, but simply the dissociation of the two molecules of the DNA double helix.Even wikipedia agrees- Melting Temperature:
DNA melting temperature, the temperature at which a DNA double helix dissociates into single strands.Kevin McCarthy sez:
Here's one in which they 'melt' a single molecule of DNA: http://www.ncbi.nlm.nih.gov/pmc....1301382
How can that be Joe, since a single molecule can't be liquid according to you.