Ch 10: Mechanisms of Genetic Change

About This Chapter

This informative chapter covers the complex subject of genetic change in easy-to-follow video and text lessons. Our professionally created learning tools act as a mobile-friendly, comprehensive study guide you can use to help you ace a test or get a high score on an exam.

Mechanisms of Genetic Change - Chapter Summary

In this chapter, you learn about what causes the chromosomes in a cell to change and what the sometimes dangerous outcomes of this process can be. Other lesson topics review the concepts of nonsense, missense and silent mutations as they apply to genetic change. Not all genetic mutations are equal, and a further study of germline and somatic mutations shows you how this works. After you review this chapter, you should be able to:

  • Describe the process and purpose of chromosomal rearrangement
  • Explain how frameshift mutations affect polypeptide formation
  • Discuss how transposons affect disease, antibiotic resistance and mutations

Take the self-assessment quizzes before you review the lessons as a test prep to gauge how well you might do on an exam. Or, take them after you've worked through the lessons to ensure you understand all the subjects you've reviewed. If you need to go back and re-watch just one part of a video lesson, the video tabs feature allows you to jump right where you'd like to go.

6 Lessons in Chapter 10: Mechanisms of Genetic Change
Test your knowledge with a 30-question chapter practice test
Chromosomal Rearrangement

1. Chromosomal Rearrangement

Have you ever switched out one thing for another or traded places with someone? Our chromosomes can do this, too. This lesson tells you how as we go over chromosomal rearrangements!

Abnormal Chromosome Number & Structure

2. Abnormal Chromosome Number & Structure

The chromosomes inside of a person's cells can undergo structural changes or changes in number, causing severe and fatal disorders. In this lesson, we'll outline what these changes are and discuss examples of some of these disorders.

Effects of Frameshift Mutations: Definitions and Examples

3. Effects of Frameshift Mutations: Definitions and Examples

What is a frameshift in genetic translation? How can a frameshift mutation change a protein? In this lesson, learn about the codon reading frame and how frameshift mutations cause serious problems for polypeptide formation.

Effects of Mutations on Protein Function: Missense, Nonsense, and Silent Mutations

4. Effects of Mutations on Protein Function: Missense, Nonsense, and Silent Mutations

How does a tiny point mutation change the way a protein works? What are the consequences of base substitutions? In this lesson, we'll use an imaginary creature to explore missense, nonsense and silent mutations.

Transposons: Definition & Types

5. Transposons: Definition & Types

Explore the motile world of genetics by learning more about the 'jumping genes' called transposons. Plentiful in many organisms, transposons have an active role in mutations, antibiotic resistance, and disease.

The Difference Between Germline & Somatic Mutations

6. The Difference Between Germline & Somatic Mutations

Cell mutate and different types of cells give rise to mutations with different effects. In this lesson, you will learn how a germinal mutation differs from a somatic mutation and which type can be passed down to future generations.

Chapter Practice Exam
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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