In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

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Chapter 12.2, Problem 1TYK

Summary Introduction

Introduction:

In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

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Answer 2

Question

Chapter 12.2, Problem 1TYK

Summary Introduction

Introduction:

In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

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Answer 3

Question

Chapter 12.2, Problem 1TYK

Summary Introduction

Introduction:

In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

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Answer 4

Question

Chapter 12.2, Problem 1TYK

Summary Introduction

Introduction:

In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

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Answer 5

Chapter 12.2, Problem 1TYK

Summary Introduction

Introduction:

In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

Answer 6

Chapter 12.2, Problem 1TYK

Summary Introduction

Introduction:

In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

Answer 7

Chapter 12.2, Problem 1TYK

Summary Introduction

Introduction:

In the presence of lactose in the environment, bacteria tend to produce lactose-using enzymes at a higher rate. However, in the absence of lactose also bacteria tend to form these enzymes, but in very small amounts. If the lac repressor is absent, there would be no control of producing the lactose-using enzymes. Therefore, either in the presence or absence of lactose in the environment, if there is no lac repressor the lactose-using enzymes will be produced continuously. This means, the lac operon is going to be expressed in any case.

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Answer 11

Ch. 12.1 - How does gene regulation underlie the different...Ch. 12.1 - Prob. 1TYK Ch. 12.1 - The most common point of gene regulation in...Ch. 12.2 - Which genes are under the control of the lac...Ch. 12.2 - Prob. 2CC Ch. 12.2 - Prob. 1BC Ch. 12.2 - Prob. 1TYK Ch. 12.3 - Prob. 1CC Ch. 12.3 - Prob. 1TYK Ch. 12.3 - Prob. 2TYK

Solution Summary: The author explains that lactose-using enzymes are produced in the presence or absence of lactating bacteria. The lac operon is located adjacent to the lacI gene.

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