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Ch 11: HiSET: Genetics & Evolution

About This Chapter

Prepare for the HiSET Science test by watching these educational videos on genes, heredity and evolution. The self-paced lessons in this chapter can help you study chromosomes, genetic heredity and natural selection.

Genetics & Evolution - Chapter Summary

Watch the videos in this chapter to prepare for genetics-related questions on the HiSET Science exam. The lessons provide an overview of the theory of evolution and Mendel's laws; specific topics include:

  • Genetics foundations
  • Alleles
  • The Law of Segregation
  • The Law of Independent Assortment
  • Simple dominance
  • Independent assortment
  • Evolution
  • Natural selection

Each of the lessons in this chapter includes a 5-10 minute video, corresponding transcript and self-assessment quizzes. You can review the material at your own pace and then use the quizzes and end-of-chapter exam to test your understanding of key genetic concepts.

HiSET Science Objectives

The HiSET is a high school equivalency exam, similar to the GED, available in a select group of states. It assesses your knowledge in five subject areas, including science. The science subtest includes 50 questions and you have 80 minutes to complete it. Content areas covered on the test include chemistry, physics, astronomy and biology; genetics is a part of the biology content area. Biology and the other life sciences are the subject of about 50% of the questions on this science test. Lessons in this chapter are designed to prepare you for possible genetics and evolution questions through topics in Mendel's first and second laws, alleles and natural selection types.

9 Lessons in Chapter 11: HiSET: Genetics & Evolution
Test your knowledge with a 30-question chapter practice test
Genetics: Heredity, Traits & Chromosomes

1. Genetics: Heredity, Traits & Chromosomes

We view manipulation of genes in our crops and livestock as a recent development. Yet, man has been manipulating the genetic makeup of his food for thousands of years through cultivation and breeding. This lesson will begin to help you understand how genetics works.

Properties of Alleles

2. Properties of Alleles

What is a dominant phenotype and how will it affect Adrian's flying hamster research? Tune in as he studies homozygous and heterozygous genotypes and the phenotypes they produce.

Mendel's First Law: The Law of Segregation

3. Mendel's First Law: The Law of Segregation

Breaking up is a hard thing to do, but homologous chromosomes always go their separate way. What effect does chromosome segregation have on genetics? We look once more to Adrian's flying hamsters for answers.

Mendel's Second Law: The Law of Independent Assortment

4. Mendel's Second Law: The Law of Independent Assortment

Understanding how Mendel's law of independent assortment describes inheritance of genes is as easy as flipping a coin. Grab a few coins, cue up the video and see how.

Exceptions to Simple Dominance: Codominance and Incomplete Dominance

5. Exceptions to Simple Dominance: Codominance and Incomplete Dominance

Have you ever wondered what it means if someone is a universal donor or acceptor of blood? See how genetic interactions play a key role in this trait.

Exceptions to Independent Assortment: Sex-Linked and Sex-Limited Traits

6. Exceptions to Independent Assortment: Sex-Linked and Sex-Limited Traits

More men are color blind compared women. But often, not every brother, cousin or uncle in a family tree is color blind. Why not? How can genetics explain this seemingly complex inheritance pattern?

Theories of Evolution: Lamarck vs. Darwin

7. Theories of Evolution: Lamarck vs. Darwin

We'll look at the interplay between population genetics and environment. Are traits individually acquired or do entire populations evolve? The flying hamsters and a few other notable experiments will provide the answers.

Natural Selection & Adaptation: Definition, Theory & Examples

8. Natural Selection & Adaptation: Definition, Theory & Examples

How does natural selection help shape the amazing types of animals we witness around us? In this lesson, we'll explore adaptations and what they can tell us about a species' past evolution.

Natural Selection: Definition, Types & Examples

9. Natural Selection: Definition, Types & Examples

We'll take a look at the types of natural selection that can occur. From flying hamsters to moths, you'll start to grasp the different paths organisms can take as they respond to their changing environments over time.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter 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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