In E.coli, the repressor binds to the _ during lactose metabolism.
Correct answer: B. Operator gene
- A. Regulator gene
- B. Operator gene
- C. Structural gene
- D. Promoter gene
Explanation
In the lac operon of E.coli, due to the activity of the regulator gene, the synthesis of repressor molecules occurs.These repressor molecules get attached to the operator gene and thus check mRNA synthesis. Because of this no protein synthesis occurs.
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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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