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Ch 55: ILTS Biology: Genetics & Heredity

About This Chapter

Use our lessons to refresh your understanding of the laws of heredity and the basics of genetics. These video and text lessons can help you answer related questions on the ILTS Biology exam.

ILTS Biology: Genetics & Heredity - Chapter Summary

Find out more about genetics and the principles of heredity as you prepare for the ILTS Biology exam. Our entertaining lessons and self-assessment quizzes let you review information on topics including:

  • Fundamentals of genetics
  • Alleles
  • Mendel's laws of heredity
  • Codominance and incomplete dominance
  • Sex linked and sex limited traits
  • Chromosomal linkage
  • Model organisms and human genetics
  • Research methods for human genetics

You can study our lessons as your schedule allows, using a computer, smartphone or tablet to review the information no matter where you are. We offer several ways to help you succeed on the ILTS Biology exam, including written lesson transcripts with key terms highlighted and printable quizzes that let you study even when you don't have Internet access.

ILTS Biology: Genetics & Heredity Chapter Objectives

Illinois makes passing the ILTS Biology exam one of the requirements for obtaining certification to teach the subject. This exam has 125 multiple-choice questions covering a range of topics divided into six subareas. Questions on the material explored in this chapter are found in the exam's subarea on Cell Biology, Heredity and Evolution.

You can get experience answering these types of questions through the quizzes that follow each of our lessons. These quizzes allow you to evaluate your knowledge. The answer key includes links back to the lesson videos. If you answer a question incorrectly, you can quickly pop back to the pertinent section of the lesson and review the teaching on that topic.

9 Lessons in Chapter 55: ILTS Biology: Genetics & Heredity
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 & Its Application

3. Mendel's First Law & Its Application

Genetics is a fascinating and confusing world. This lesson will delve into Gregor Mendel's First Law, or the Law of Segregation, explaining what it means and how you can use it.

Mendel's Second Law & Its Application

4. Mendel's Second Law & Its Application

In this lesson, we'll explore how genes can assort independently according to Mendel's second law. We'll also use Punnett squares to see whether or not genes are linked and how this relates to research.

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?

Crossing Over & Gene Linkage: Definition, Importance & Results

7. Crossing Over & Gene Linkage: Definition, Importance & Results

During this latest development of his flying hamster experiments, Adrian must learn about linked genes and recombinant chromosomes to unlock the mystery of the fire-breathing hamster. In this lesson, you'll look at another exception to Mendel's law of independent assortment.

Human Genetics: Multifactorial Traits & Model Organisms

8. Human Genetics: Multifactorial Traits & Model Organisms

How do we study human genetics when most traits arise from multiple genes? It's certainly more complicated that drawing a simple Punnett square. Never fear, for model organisms are here!

Human Genetics Research Methods: Pedigrees and Population Genetics

9. Human Genetics Research Methods: Pedigrees and Population Genetics

Have you ever wondered how people study human genetics? Do you know what a pedigree or a complex disease is? In this lesson you'll learn about some of the techniques that human geneticists use and what pedigrees and complex diseases have to do with human genetics.

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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