The medium used by Meselson & Stahl for confirmation of the semi-conservative method was:
Correct answer: B. Cesium chloride
- A. Calcium chloride
- B. Cesium chloride
- C. Calcium carbide
- D. Silicon carbide
Explanation
Meselson and Stahl used density gradient centrifugation in CsCl with isotopes of nitrogen (¹⁵N and ¹⁴N) to prove semi conservative DNA replication.
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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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