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Ch 18: Campbell Biology Chapter 18: Regulation of Gene Expression

About This Chapter

The Regulation of Gene Expression chapter of this Campbell Biology Companion Course helps students learn the essential lessons associated with regulation of gene expression. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Regulation of Gene Expression textbook chapter.

How It Works:

  • Identify the lessons in the Campbell Biology Regulation of Gene Expression chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the regulation of gene expression topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Operon parts and how gene transcription is controlled by them
  • How differential gene expression is defined
  • Kinds of chromatin modifications
  • Types of transcription factors and their functions
  • Functions of non-coding DNA
  • How chromatin is remodeled by non-coding RNA
  • Functions of cytoplasmic determinants
  • The development of Drosophila
  • Genetic changes that can happen while cancer is forming
  • The multistep model of cancer development
  • Causes of cancer
  • Genetic risk factors for cancer

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13 Lessons in Chapter 18: Campbell Biology Chapter 18: Regulation of Gene Expression
Test your knowledge with a 30-question chapter practice test
Regulation of Gene Expression: Transcriptional Repression and Induction

1. Regulation of Gene Expression: Transcriptional Repression and Induction

Do our genes work the same way all the time? How do we regulate the expression of our genes? Explore the various ways organisms control gene transcription through repression and induction of operons.

How An Operon Controls Transcription in a Prokaryotic Cell

2. How An Operon Controls Transcription in a Prokaryotic Cell

Is gene regulation really as simple as flipping a switch? What are the parts of an operon, and how do they function to control gene transcription? We'll study the lac operon to answer these questions.

Differential Gene Expression: Definition & Examples

3. Differential Gene Expression: Definition & Examples

In this lesson, explore the theory of differential gene expression and discover what it means in terms of how different cells are formed, how DNA is stored, and how to clone a sheep.

Chromatin Structure: Regulation & Modifications

4. Chromatin Structure: Regulation & Modifications

While your DNA consists of many, many genes, each cell only expresses a few specific ones at a time. Mechanisms are in place to regulate which genes are turned on or off in each cell, as well as whether those instructions should be passed on to new cells.

Transcription Factors: Definition, Types & Roles

5. Transcription Factors: Definition, Types & Roles

How do we go from DNA to a creating a specific cell? It's a complex process, but one that could not function without transcription factors. In this lesson we will discover what exactly transcription factors are, as well as see how they work and help regulate gene expression.

Non-Coding Regions of DNA: Sequences & Explanation

6. Non-Coding Regions of DNA: Sequences & Explanation

In biology we learn that DNA is the blueprint for life. However, 98% of your DNA does not code for proteins. This non-coding DNA has been called useless, worthless, in a word, 'junk DNA.' But is it really worthless? Read this lesson and find out.

How Non-coding RNA Remodels Chromatin

7. How Non-coding RNA Remodels Chromatin

How do cells turn bundles of genetic information into a new cell? It's a complex process, and an important part of this is chromatin remodeling, a process we'll look at in this lesson.

Cytoplasmic Determinants & Signal Induction

8. Cytoplasmic Determinants & Signal Induction

How does an entire organism develop from a single fertilized cell? In this lesson we will explore the role of cytoplasmic determinants and signal induction in the differentiation of cells.

Drosophila Development: Pattern Formation of the Body Plan

9. Drosophila Development: Pattern Formation of the Body Plan

In this lesson, you'll learn how those pesky fruit flies develop from a fertilized egg through the help of specific genes. Maternal-effect, segmentation and homeotic genes help to establish proper pattern formation and development in Drosophila.

Cancer at the Level of the Genome

10. Cancer at the Level of the Genome

This lesson will delve into the genetic changes that may occur during cancer formation. You'll learn about proto-oncogenes, oncogenes, tumor suppressor genes, viral oncogenesis, p53, and more.

How Somatic Mutations Lead to Cancer Development

11. How Somatic Mutations Lead to Cancer Development

Cancer usually develops in the body in a multi-step process that involves proto-oncogenes, oncogenes, and tumor suppressor genes. Find out how as we define these terms and go over a concrete example of how they're involved.

What Causes Cancer?

12. What Causes Cancer?

This lesson will discuss a model of cancer formation as well as some things that can cause cancer. You'll learn about initiation, promotion, and progression as well as what occurs during each step.

Cancer Syndromes & Genetic Risk Factors for Cancer

13. Cancer Syndromes & Genetic Risk Factors for Cancer

This lesson describes something called cancer syndrome or family cancer syndrome, as well as the important clues that can help it be detected and two examples of such a condition.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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