DNA was first discovered in 1869 by:
Correct answer: C. F. Miescher
- A. P.A. Levene
- B. Watson and Crick
- C. F. Miescher
- D. Franklin
Explanation
Friedrich Miescher, a Swiss biologist, is credited with the first isolation of DNA in 1869. He discovered a substance he called "nuclein" in the nuclei of white blood cells, which we now know to be DNA. However, the significance of his discovery was not fully recognized until later.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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