Who discovered DNA?
Correct answer: A. Frederick Miescher
- A. Frederick Miescher
- B. Frederick Sanger
- C. Frederick Griffith
- D. Frederick Aldrich
Explanation
Frederick Miescher, a Swiss chemist, is credited with the discovery of DNA in 1869 when he isolated a substance he named 'nuclein' from the nuclei of cells. This substance was later understood to be DNA. The other options refer to scientists associated with different contributions to biology and genetics. Frederick Sanger developed methods for sequencing DNA, Frederick Griffith discovered the transforming principle, and Frederick Aldrich is not relevant to this context.
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More Biological Molecules questions
DNA was discovered by:
Transfer RNA comprises about _ % of the cellular RNA.
Like DNA _ is a polymer of ribonucleotides.
Nucleic acids were named so due to:
Mostly occurs in the nuclei of the cells but in lesser amount outside the nucleus as well:
It is mostly present in the nucleolus, in the ribosomes, in the cytosol and in smaller amounts in other parts of the cell as well: