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Ch 10: Types & Effects of Genetic Mutations

About This Chapter

Watch video lessons on genetic mutations to learn how mutations occur, how they can be corrected and more. Each lesson is accompanied by a short multiple-choice quiz you can use to check your understanding of these genetics topics.

Genetic Mutations - Chapter Summary and Learning Objectives

Every information system has its imperfections or glitches that occasionally arise, and you will soon understand more about that as you study this chapter covering genetic mutations. As you might already know, mutations in human DNA can lead to health problems or birth defects. However, not every DNA strand that experiences a mutation will end up causing problems because the body has ways of correcting some mutations. In these lessons, you'll learn about mutations and their effects on DNA and protein function. You'll look at the mechanisms of mutation and the types of point mutations that can occur. Our lessons will introduce you to an array of topics related to mutations in the genes, such as:

  • The basic causes of mutations
  • How mutations occur
  • What happens when a mutation occurs
  • How mutations can be avoided or prevented
  • How the body may naturally repair a mutation

Video Objectives
Point Mutations: Base Substitutions, Insertions, and Deletions See what genetic mutations are and how they affect DNA.
Effects of Mutations on Protein Function: Missense, Nonsense, and Silent Mutations Study how missense, nonsense and silent mutations arise from base substitutions.
The Effects of Frameshift Mutations: Definitions and Examples Explore how frameshift mutations arise from insertions and deletions.
Mutagens: How the Environment Affects Mutation Rates Examine how DNA polymerase corrects mistakes and how exposure to mutagens in our environment can be reduced.

5 Lessons in Chapter 10: Types & Effects of Genetic Mutations
Test your knowledge with a 30-question chapter practice test
What is a Point Mutation? - Definition, Causes & Types

1. What is a Point Mutation? - Definition, Causes & Types

What are genetic mutations? How do they affect our DNA? This lesson covers the basics of point mutations and provides simple examples of different mutation types.

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

2. 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.

Mutagens: How the Environment Affects Mutation Rates

3. Mutagens: How the Environment Affects Mutation Rates

What causes mutations to occur in living things? How do we avoid mutations? Are mutations always bad? Discover answers to these questions and more in this lesson on mutagens.

Effects of Frameshift Mutations: Definitions and Examples

4. 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.

Point Mutations in DNA: Types, Diseases & Examples

5. Point Mutations in DNA: Types, Diseases & Examples

Did you know that very small changes in DNA sequences called point mutations can have huge impacts on the body? Learn about different types of point mutations and a few of the diseases they can cause in this lesson.

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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