The semi conservative model of DNA was proved by:
Correct answer: B. Meselson - Stahl
- A. P.A. Levene
- B. Meselson - Stahl
- C. F. Miescher
- D. Watson and Crick
Explanation
Meselson and Stahl interpreted their results as follows: after the first round of replication, each daughter DNA duplex was a hybrid possessing one heavy strand and one light strand. When this hybrid duplex replicated, it contributed one heavy strand to form another hybrid duplex and one light strand to form a light duplex. This experiment clearly confirmed the prediction of the Watson-Crick model that DNA replicates in a semi-conservative manner.
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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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