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Write note on any three of the following...

Write note on any three of the following: each with two to three important points:

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Operon concept An operon is a unit of prokaryotic gene expression which includes sequentially regulated (structural) genes and control elements recognised by the regulatory gene product such as
Structural genes The regions of DNA which transcribe mRNA for polyper synthesi
Promoter gene The sequence of DNA where RNA polymerase binds and initiales transcription.
Operator The sequence of DNA found adjacent to promoter where specific repressor protein binds.
Regulator It is the i gene which codes for the repressor protein that binds to the operator and suppresses its activity
Inducer lt prevents the repressor from binding to the operator. Due to which the process of transcription is switched on.
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