Ch 6: DNA Mutations: Help and Review

About This Chapter

The DNA Mutations chapter of this Intro to Anthropology Help and Review course is the simplest way to master an understanding of DNA damage and mutations. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure students learn the essentials of DNA mutations.

Who's it for?

Anyone who needs help learning or mastering introductory anthropology material will benefit from taking this course. There is no faster or easier way to learn introductory anthropology. Among those who would benefit are:

  • Students who have fallen behind in understanding mutagens or DNA mutations
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning social science (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about DNA mutations
  • Students who struggle to understand their teachers
  • Students who attend schools without extra social science learning resources

How it works:

  • Find videos in our course that cover what you need to learn or review.
  • Press play and watch the video lesson.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Verify you're ready by completing the DNA Mutations chapter exam.

Why it works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the DNA Mutations chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any DNA mutations question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students will review:

This chapter helps students review the concepts in a DNA mutations unit of a standard general anthropology course. Topics covered include:

  • Effects of mutations on protein function
  • Mutagens
  • Causes of mutation and DNA damage
  • DNA mismatch repair
  • Reversing DNA damage caused by irradiation and mutagens

11 Lessons in Chapter 6: DNA Mutations: Help and Review
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

Point mutations are changes to the genetic sequence where a single nucleotide base is changed, inserted, or deleted. Explore the definition and causes of point mutations and discover the difference between the two basic types: base substitutions and insertion and deletion.

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

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

Proteins are vital for healthy cells, and protein function can be negatively affected by point mutations. Learn about missense, nonsense, and silent mutations and understand the effects mutations have on the function of proteins.

Effects of Frameshift Mutations: Definitions and Examples

3. Effects of Frameshift Mutations: Definitions and Examples

Frameshift mutations happen when a protein is drastically changed because of an insertion or a deletion. Review the different types of mutations, the codon reading frame, and how damaging frameshift mutations really are.

Mutagens: How the Environment Affects Mutation Rates

4. Mutagens: How the Environment Affects Mutation Rates

Mutations are caused by environmental agents called mutagens. Explore how mutations are formed, the role of DNA polymerase in preventing mutations, and how mutations affect the real world.

Causes of Mutation and DNA Damage- Mutagens

5. Causes of Mutation and DNA Damage- Mutagens

Genetic mutations are caused by damage or changes to an organism's DNA sequence. Learn about chemical mutagens like base analogs, base-modifying agents, and intercalating agents, and discover how they affect and change DNA.

Causes of Mutation and DNA Damage- Irradiation

6. Causes of Mutation and DNA Damage- Irradiation

Along with chemical mutagens, irradiation is one of two ways DNA can be damaged, resulting in DNA mutations. Learn the definition of irradiation and two significant sources of radiation, including ionizing and non-ionizing, and ultraviolet light, and what role they can play in the cellular process of DNA mutation.

DNA Mismatch Repair: Correcting Errors That Happen During DNA Replication

7. DNA Mismatch Repair: Correcting Errors That Happen During DNA Replication

DNA mismatch repair machinery, a natural process in living organisms, is responsible for identifying and correcting DNA replication errors. Explore DNA mismatch repair, learn how cells recognize errors and the parental strand, and understand how cell mutations can lead to cancer when mismatch repair is not working.

Reversing DNA Damage Caused by Mutagens and Irradiation

8. Reversing DNA Damage Caused by Mutagens and Irradiation

Due to mutagens and irradiation, DNA can easily be damaged. Luckily, that damage can be reversed with the right steps. In this lesson, learn about DNA damage, base excision repair, nucleotide excision repair, and direct repair.

DNA Repair: Fixing Double-Strand Breaks

9. DNA Repair: Fixing Double-Strand Breaks

DNA has two strands and either one or both can be broken and also repaired within a cell. Learn the two ways cells fix DNA double-strand breaks, including homologous recombination with sister chromatids, which are exact copies of chromosomes cells use to replicate DNA, or using a different method called non-homologous end-joining.

Deletion Mutation: Definition, Examples & Diseases

10. Deletion Mutation: Definition, Examples & Diseases

Deletion Mutation, where DNA replication misses part of a DNA molecule, can result in genetic disease. Discover the process and components involved in different types of deletion, and examples of the various diseases which may ensue.

Wild Type in Genetics: Definition & Traits

11. Wild Type in Genetics: Definition & Traits

Identifying the genetic 'wild type' in populations is critical to understanding how that population is changing. Here we will define the 'wild type' and review some examples. At the end, you can test your knowledge with a short quiz.

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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