In the operon concept, the regulator gene functions as a/an:
Correct answer: D. All of these
- A. Inhibitor
- B. Repressor
- C. Regulator
- D. All of these
Explanation
In the operon model, the regulator gene codes for a (repressor) protein that controls the expression of the operon. The repressor can be considered an inhibitor because it inhibits transcription when it binds to the operator. Thus, the regulator gene functions as a repressor (and effectively an inhibitor) .
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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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