If DNA is deoxyribonucleic acid, what is the pH of DNA?
Does the sequence of nucleotides influence this in any way?
pH is only meaningful for solutions.
DNA by itself doesn’t have a pH. A solution of DNA would have a pH depending on the amount of DNA in the solution. People who work with DNA usually keep it in a buffered solution with a pH that depends on the other components of the solution rather than the DNA.
As for whether or not the sequence affects the pH, I don’t think it would because the acidic part of DNA is the phosphate group that joins nucleotides together, and that doesn’t vary between different sequences.
The human body has a pH of approximately 7.2, IIRC. Most biochemists/molecular biologists/etc use solutions buffered to between 6.5 to 7.5 or so when working with DNA, although this totally varies depending on what they are trying to do with it.
IIRC, the blood is slightly acidic, the stomach fluid is highly acidic, your skin is slightly acidic, while your intenstine is somewhat basic.