Ch 31: MTEL Biology: Human Genetics

About This Chapter

The videos and lesson transcripts in this chapter let you brush up on human genetics issues as you prepare for the MTEL Biology exam. The major themes in the lessons are indicated with bold key terms.

MTEL Biology: Human Genetics - Chapter Summary

While you're reviewing the lessons in this chapter, you may come across some new subject matter that could show up on the MTEL Biology exam. Revisit information on the exceptions to simple dominance that include codominance and incomplete dominance in case there's a related question on the test. Whether it's behavioral genetics or another focus area, the content in this chapter will be fresh in your mind for the day of the test. As you go through the chapter, you'll see the following topics:

  • Mendel's law of segregation and its application
  • The law of independent assortment
  • How genetics and the environment interact in human development
  • Sex-linked and sex-limited traits
  • Pedigree analysis in human genetics
  • Chromosomal linkage and crossing over

You may watch these online lessons on any of your mobile devices. Learn at a pace that's comfortable for you as you get ready for the exam's questions on human genetics. During your review, you will see several questions in this chapter's practice quizzes that resemble potential test items.

MTEL Biology: Human Genetics Chapter Objectives

This chapter's aligned with the objectives of the Genetics, Evolution and Biodiversity subarea on the MTEL Biology exam. You'll be answering somewhere between 17 and 19 multiple-choice questions in this subarea. There's a possibility that genetics will be an area addressed in the open-response test items in the final subarea of the exam.

12 Lessons in Chapter 31: MTEL Biology: Human Genetics
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.

Mendel's First Law: The Law of Segregation

2. 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.

Application of Mendel's First Law

3. Application of Mendel's First Law

Hollywood Squares? No, it's Punnett Squares! Those wacky diagrams are a geneticist's best friend. See how they turn geneticists into soothsayers, predicting the genotypic and phenotypic future.

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.

Mendel's Dihybrid Cross Example: Practice & Ratio

5. Mendel's Dihybrid Cross Example: Practice & Ratio

Oh no! Twice the genes and sixteen genotypes - a dihybrid cross seems overwhelming to understand. Never fear though, Punnett squares will save the day!

Exceptions to Simple Dominance: Codominance and Incomplete Dominance

6. 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

7. 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

8. 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.

How Genetics Helps Us Understand Human Behavior

9. How Genetics Helps Us Understand Human Behavior

This lesson demonstrates how physical anthropologists use genetics to better understand the human experience. You'll learn how they combine their knowledge of both biology and the social sciences together to contribute to their field.

How Genetics and the Environment Interact in Human Development

10. How Genetics and the Environment Interact in Human Development

Everyone is different. But what makes a person unique? In this lesson, we'll examine the way genes and the environment affect who a person is, including looking at the nature vs. nurture debate and looking at how nature and nurture influence one another.

Pedigree Analysis in Human Genetics: Inheritance Patterns

11. 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!

Types of Studies in Behavioral Genetics: Twin, Family & Adoption

12. Types of Studies in Behavioral Genetics: Twin, Family & Adoption

Are you destined to inherit your mother's penchant for collecting old postcards or your father's constant worry that something bad is about to happen? Find out with this lesson, which delves into the world of genetic and environmental behaviors and personality traits.

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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