'Lac operon' in E.coli is induced by the:
Correct answer: C. β-galactosidase
- A. 'I' gene
- B. Promoter gene
- C. β-galactosidase
- D. Lactose
Explanation
The lac operon in E. coli is induced by β-galactosidase, an enzyme meant for the hydrolysis of lactose in glucose and galactose.
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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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