DNA fragments are:
- APositively charged
- BNegatively charged
- CNeutral
- DEither positively or negatively charged depending on their size
Solution & Step-by-step Explanation
DNA is negatively charged because of the phosphate groups (PO
4
3−
) present in its sugar-phosphate backbone. Each nucleotide contributes a negative charge.
4
3−
) present in its sugar-phosphate backbone. Each nucleotide contributes a negative charge.