(A)Describe by Labeled Diagram the Structural Components of the Lac

question 8

Essay

(a)Describe by labeled diagram the structural components of the lac operon in E.coli.
(b)State the function of the lac regulator gene.
(c)State the function of β-galactosidase in the lac system.
(d)Show by diagram the manner in which lactose brings about transcription of the three structural genes of the lac operon.
(e)Explain why certain mutations in the regulator gene (I-)of the lac system result in maximal synthesis of β-galactosidase,permease,and transacetylase even in the absence of the inducer (lactose).

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Equity Method

An accounting procedure used for recording investments in associated companies where the investor has significant influence but not control.

Significant Influence

The capability to engage in the decision-making processes regarding the financial and operational policies of an investee, but without exercising control or shared control over such policies.

Equity in Income

Earnings attributed to a company's investment in other companies, reflecting the share of profits from the investments.

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The final profit amount for a company, which comes after deducting all expenditures and taxes from the gross revenue.