Thank you very much, Canalon. However, I do question your notion that DNA should be counted as two molecules. The joining by hydrogen bonds qualifies the structure as a single molecule. By that reasoning you would always be looking at the vast number of single complex molecules that can be recognized as combinations of molecules.
I think I recall reading Watson’s DNA book and his specifically refering to DNA as a single molecule. I’m certainly no expert on this stuff, so maybe someone else will jump in.
Still, I really appreciate you clearing up my confusion over the extent of the DNA double helix as it relates to the chromosomes.