Biology, asked by akash21623, 6 months ago

(i)What are the four levels at which gene expression is regulated in eukaryotic cell? (ii)Name the regulatory gene of Lac –operon

Answers

Answered by hariomishra9999999

Answer:

Ans1:- Chromatin structure. Chromatin may be tightly compacted or loose and open.

Transcription. ...

Processing and export. ...

mRNA stability. ...

Translation. ...

Protein processing.

Ans2:- The regulatory gene lacI produces an mRNA that produces a Lac repressor protein, which can bind to the operator of the lac operon. In some texts, the lacI regulatory gene is called the lacI regulator gene. Thus the Lac repressor inhibits transcription of the lac operon.

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