Explain why DNA has an overall negative charge.

Question

anonymous · Answer

DNA has a negative charge because of the phosphate ions in its chemical "backbone". lol got the answer

opcode · Answer

Here's it better explained: DNA backbones are made up of deoxyribose, a pentose sugar. These sugars are connected via a phosphodiester bond. The phosphate groups have a negative charge to them, which allows positively charged histone proteins to interact with them in forming chromatin. Also helps separate DNA with gel electrophoresis. Source: http://answers.yahoo.com/question/index?qid=20100114181806AA1qhQb

anonymous · Answer

thanks