DNA was discovered by:
Correct answer: C. A Swiss chemist
- A. A French chemist
- B. A German chemist
- C. A Swiss chemist
- D. A Spanish chemist
Explanation
The molecule now known as DNA was first identified by Johann Friedrich Miescher, a Swiss chemist, in the 1860s. He was studying the composition of white blood cells and discovered the nucleic acid in the cell nuclei, which he termed 'nuclein.' The other options are incorrect because no French, German, or Spanish chemist is credited with the discovery of DNA.
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