The two important ways in which the lac repressor and pur repressor differences can be determined. Concept introduction: E. Coli contains of lac operon, which is involved in lactose metabolism . It can be expressed in the presence of lactose and absence of glucose. The two regulators of lac operons are the lac repressor and the CAP. The function of these two regulators is to turn ‘on’ and ‘off’ the operon in response to glucose and lactose.

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Chapter 31, Problem 4P

Interpretation Introduction

Interpretation:

The two important ways in which the lac repressor and pur repressor differences can be determined.

Concept introduction:

E. Coli contains of lac operon, which is involved in lactose metabolism. It can be expressed in the presence of lactose and absence of glucose. The two regulators of lac operons are the lac repressor and the CAP. The function of these two regulators is to turn ‘on’ and ‘off’ the operon in response to glucose and lactose.

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