Question

what is the charge on DNA

Answer 1

DNA has an overall negative charge phosphate group having a negative charge

Answer 2

Phosphate groups which are negatively charged and give DNA molecules a negative charge.
A 5 carbon sugar, deoxyribose (hence the name deoxyribonucleic acid). There are two sugars found in nucleic acids; ribose is found in RNA (ribonucleic acid) and deoxyribose in DNA.

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