The single operator site that is most important for repression Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

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Answer 1

Question

Chapter 8, Problem 19P

A.

Summary Introduction

To explain: The single operator site that is most important for repression

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

B.

Summary Introduction

To explain: Whether the combinations of operator sites substantially increase repression by the dimeric repressor and the combination of operator sites substantially increase repression by the tetrameric repressor. The reason as to why the two repressors behave differently.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

C.

Summary Introduction

To explain: The wild type repressor binds strongly when O₃is present with O_1.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

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Answer 2

Question

Chapter 8, Problem 19P

A.

Summary Introduction

To explain: The single operator site that is most important for repression

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

B.

Summary Introduction

To explain: Whether the combinations of operator sites substantially increase repression by the dimeric repressor and the combination of operator sites substantially increase repression by the tetrameric repressor. The reason as to why the two repressors behave differently.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

C.

Summary Introduction

To explain: The wild type repressor binds strongly when O₃is present with O_1.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Expert Solution & Answer

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Answer 3

Question

Chapter 8, Problem 19P

A.

Summary Introduction

To explain: The single operator site that is most important for repression

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

B.

Summary Introduction

To explain: Whether the combinations of operator sites substantially increase repression by the dimeric repressor and the combination of operator sites substantially increase repression by the tetrameric repressor. The reason as to why the two repressors behave differently.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

C.

Summary Introduction

To explain: The wild type repressor binds strongly when O₃is present with O_1.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Expert Solution & Answer

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Answer 4

Question

Chapter 8, Problem 19P

A.

Summary Introduction

To explain: The single operator site that is most important for repression

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

B.

Summary Introduction

To explain: Whether the combinations of operator sites substantially increase repression by the dimeric repressor and the combination of operator sites substantially increase repression by the tetrameric repressor. The reason as to why the two repressors behave differently.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

C.

Summary Introduction

To explain: The wild type repressor binds strongly when O₃is present with O_1.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Expert Solution & Answer

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Answer 5

Chapter 8, Problem 19P

A.

Summary Introduction

To explain: The single operator site that is most important for repression

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

B.

Summary Introduction

To explain: Whether the combinations of operator sites substantially increase repression by the dimeric repressor and the combination of operator sites substantially increase repression by the tetrameric repressor. The reason as to why the two repressors behave differently.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

C.

Summary Introduction

To explain: The wild type repressor binds strongly when O₃is present with O_1.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Answer 6

Chapter 8, Problem 19P

A.

Summary Introduction

To explain: The single operator site that is most important for repression

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Answer 7

Chapter 8, Problem 19P

A.

Summary Introduction

To explain: The single operator site that is most important for repression

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Answer 8

B.

Summary Introduction

To explain: Whether the combinations of operator sites substantially increase repression by the dimeric repressor and the combination of operator sites substantially increase repression by the tetrameric repressor. The reason as to why the two repressors behave differently.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Answer 9

B.

Summary Introduction

To explain: Whether the combinations of operator sites substantially increase repression by the dimeric repressor and the combination of operator sites substantially increase repression by the tetrameric repressor. The reason as to why the two repressors behave differently.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Answer 10

C.

Summary Introduction

To explain: The wild type repressor binds strongly when O₃is present with O_1.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Answer 11

C.

Summary Introduction

To explain: The wild type repressor binds strongly when O₃is present with O_1.

Concept introduction: Prokaryotes regulate their genes using operons. Operons control transcription of multiple genes. Lac operon controls the genes that produce enzymes necessary for metabolism of lactose. The Lac operon includes operator, promoter, repressor and the genes that code for three enzymes required for conversation of lactose to glucose.

Answer 12

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Answer 15

Ch. 8 - Prob. 1P Ch. 8 - Prob. 2P Ch. 8 - Prob. 3P Ch. 8 - Prob. 4P Ch. 8 - Prob. 5P Ch. 8 - Prob. 6P Ch. 8 - Prob. 7P Ch. 8 - Prob. 8P Ch. 8 - Prob. 9P Ch. 8 - Prob. 10P

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