Jacob and Monod studied lactose metabolism in E.coli and proposed operon concept. It is applicable for
Correct answer: A. All prokaryotes
- A. All prokaryotes
- B. All prokaryotes and some eukaryotes
- C. All prokaryotes and all eukaryotes
- D. All prokaryotes and some protozoans
Explanation
The operon model was given by Jacob and Monod (1961) for the regulation of protein synthesis in prokaryotes only. In bacteria, the genes that contain the information for assembling the enzymes for a metabolic pathway are usually clustered together on the chromosome in a functional complex called an operon. Regulation of protein synthesis in eukaryotes is explained by the gene battery model given by Britten and Davidson.
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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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