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Distinguish between structural gene, reg...

Distinguish between structural gene, regulatory gene and operator gene.

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The clusters of gene with related functions are called Operons. Each Operon is a unit of gene expression and regulation and consists of:
(i) The structural gene codes for proteins, rRNA and tRNA required by the cell.
(ii) Promoters are the signal sequences in DNA that initiate RNA synthesis. RNA polymerase biinds to the promoter prior to the initiation of transcription.
(iii) The operators are present between the promoters and structural genes. The repressor protein binds to the operator regions of the operon.
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