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Ch 19: Pedigrees & Genetic Inheritence

About This Chapter

If understanding pedigree analysis and genetics is tough for you, the resources in this chapter may simplify things. Our easy-to-understand text and video lessons can help you review these concepts anytime, from anywhere you have access to the internet.

Pedigrees & Genetic Inheritence - Chapter Summary

The lessons in this chapter look at topics related to genetics and inheritance analysis, including how Punnett squares are used and what complementation tests are. You'll learn about issues surrounding genetic testing and see how genetics can influence development. After finishing these lessons, you should be comfortable doing the following:

  • Identifying inheritance patterns found in pedigree analysis
  • Giving an example of a monohybrid cross
  • Defining a Punnett Square
  • Reviewing the different types of complementation tests
  • Recalling the role of single gene-pair inheritance
  • Discovering the concepts behind genetic crossing over
  • Explaining what genetic tests are, how they work and the ethical concerns of these tests

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10 Lessons in Chapter 19: Pedigrees & Genetic Inheritence
Test your knowledge with a 30-question chapter practice test
Pedigree Analysis in Human Genetics: Tutorial

1. Pedigree Analysis in Human Genetics: Tutorial

One of the oldest genetic techniques is pedigree analysis, and yet it is still used every day all around the world by doctors, geneticists, and genetic counselors. Building and reading a pedigree is actually fairly easy if you know what the symbols mean. In fact, it's so easy that you can learn how to do it in less than ten minutes if you watch this video!

Pedigree Analysis in Human Genetics: Inheritance Patterns

2. Pedigree Analysis in Human Genetics: Inheritance Patterns

So you've learned what a pedigree is and how to read or even create one. Now you're ready to learn how to analyze a pedigree and figure out what kind of inheritance pattern a genetic condition follows!

Monohybrid Cross: Definition & Example

3. Monohybrid Cross: Definition & Example

Some genetic characteristics are inherited in predictable patterns. In this lesson you will learn what monohybrids are and how to predict the kinds of characteristics that their offspring will show.

Punnett Square: Definition & Example

4. Punnett Square: Definition & Example

This lesson will define what a Punnett square is and show several examples of how one can be used. It will also briefly describe patterns of inheritance.

Complementation Tests: Alleles, Crosses & Loci

5. Complementation Tests: Alleles, Crosses & Loci

Don't judge an organism by its phenotype; sometimes, two organisms will have the same phenotype but completely different genotypes. In this lesson, we'll learn how a complementation test can identify if mutations occurred within the same gene or different genes.

The Influence of Single Gene-Pair Inheritance on Development

6. The Influence of Single Gene-Pair Inheritance on Development

What is single gene-pair inheritance? What influence does it have on human development? Learn the answers to these questions as we explore this area of genetic inheritance in this video lesson.

The Influence of Sex-Linked and Polygenic Inheritance on Development

7. The Influence of Sex-Linked and Polygenic Inheritance on Development

What is sex-linked inheritance? What influence does it have on human development? What does it mean if a trait is polygenic? Learn the answers to these questions as this lesson explores this area of genetic inheritance.

Genetic Crossing Over: Definition & Concept

8. Genetic Crossing Over: Definition & Concept

Crossing over of genes is a big factor in the genetic diversity of living things. Here we will define the process of crossing over, and further explore the mechanism behind it.

How Prenatal and Postnatal Genetic Testing Works

9. How Prenatal and Postnatal Genetic Testing Works

Have you ever wondered why pregnant women have so many doctor visits and need so many tests done? Learn more about how prenatal and postnatal genetic testing works and test your knowledge with a quiz.

Genetic Testing & Screening: Social & Ethical Considerations

10. Genetic Testing & Screening: Social & Ethical Considerations

In this lesson, we'll explore the big issue of genetic testing and screening. Let's take a look how it can change a person's life and affect the lives of those close to them.

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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