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Ch 8: MTTC Integrated Science (Elementary): Heredity & Genetics

About This Chapter

Use our chapter on heredity and genetics as preparation for the MTTC Integrated Science (Elementary) teacher certification test. These brief, well-designed lessons provide a strong foundation for your review.

MTTC Integrated Science (Elementary): Heredity & Genetics - Chapter Summary

From Mendel's experiments with pea plants to modern DNA cloning, the science of genetics and heredity attempts to explain the similarities and differences between individuals of every species, including our own. These lessons give a comprehensive overview of what a science teacher must know in order to teach this subject at the elementary level. The lessons include the following information:

  • Introduction to genetics and the genetic code
  • Gene expression and Mendel's laws
  • Polygenic inheritance and chromosome theory
  • Dominant and recessive genes
  • Sex-linked, sex-limited and sex-influenced genes
  • Model organisms
  • Cloning, DNA analysis and genetic engineering
  • Applying DNA technologies to daily living

You will find, as you view these lessons, that key terminology is highlighted for your convenience and easy reference. Further, we provide written transcripts to accompany every video, and our self-assessment quizzes have links that allow you to refer back to them. This integrated approach encourages you to pinpoint exactly what you need to review, saving you time that might otherwise be wasted in unnecessary repetition.

MTTC Integrated Science (Elementary): Heredity & Genetics Chapter Objectives

The MTTC Integrated Science (Elementary) exam is divided into four domains: Foundations of Scientific Inquiry, Life Science, Physical Science and Earth/Space Science. Our Heredity & Genetics chapter aligns with the Life Science domain, which, like the other three, makes up 25% of the test.

The MTTC Integrated Science (Elementary) exam can be taken either on paper or computer. Whether you take the written or the computer-based test, there will be 100 multiple-choice questions for you to answer.

14 Lessons in Chapter 8: MTTC Integrated Science (Elementary): Heredity & 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.

The Genetic Code: Influence of Mitosis, Meiosis & Crossing Over

2. The Genetic Code: Influence of Mitosis, Meiosis & Crossing Over

In this lesson, we will learn what the genetic code is and how it can be affected by mitosis, meiosis and crossing over. When mistakes are made and genes are altered, it can have a negative impact on human development.

Regulation of Gene Expression: Transcriptional Repression and Induction

3. Regulation of Gene Expression: Transcriptional Repression and Induction

Do our genes work the same way all the time? How do we regulate the expression of our genes? Explore the various ways organisms control gene transcription through repression and induction of operons.

Mendel's First Law: The Law of Segregation

4. 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

5. 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.

The Influence of Sex-Linked and Polygenic Inheritance on Development

6. 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.

The Chromosome Theory of Inheritance: Segregation and Independent Assortment

7. The Chromosome Theory of Inheritance: Segregation and Independent Assortment

Mendel proposed the law of segregation and the law of independent assortment to explain the inheritance behind his pea plant traits. A hundred years later, Boveri and Sutton developed the chromosome theory of inheritance, which stated that chromosomes were responsible for the heredity Mendel observed. Learn about these men and their ideas in this lesson.

Exceptions to Simple Dominance: Codominance and Incomplete Dominance

8. 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

9. 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?

Human Genetics: Multifactorial Traits & Model Organisms

10. 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!

What is Genetic Engineering? - Definition and Examples

11. What is Genetic Engineering? - Definition and Examples

How do we make the insulin used by diabetic patients? In this lesson, you'll learn the basics of how genetic engineering can be used to transform a bacterial host cell into a genetically-modified organism that produces human insulin.

DNA Cloning: Definition and Process

12. DNA Cloning: Definition and Process

DNA cloning is used for a variety of purposes, but how does it work? In this video lesson, you will learn about the process of cloning DNA, as well as see examples of how cloning is used in science, medicine, and consumer products.

Genomic DNA Analysis

13. Genomic DNA Analysis

Your genes are what make you who you are, but they also make you a human. Studying genes and genomes allows scientists to better understand not only our own species, but how we are related to other species in the world as well.

Practical Applications of DNA Technology

14. Practical Applications of DNA Technology

DNA technology is a field that has many applications for our everyday lives. In this video lesson, you will learn about some of the important contributions of DNA technology to industries such as medicine, agriculture and criminal investigation.

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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