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Question:

DNA fragments are Negatively charged, Positively charged, Neutral, Either positively or negatively charged depending on their size

Either positively or negatively charged depending on their size

Negatively charged

Positively charged

Neutral

Solution:

The correct option is C Negatively charged
DNA is made up of a deoxyribose sugar, phosphate group, and nitrogenous bases. Phosphorus groups are negatively charged which imparts negative charge to the DNA. The charge of DNA and DNA fragments is the same.
Thus, option C is the correct answer.