Ch 3: Genetic Influences on Development

About This Chapter

Watch video lessons and take self-assessment quizzes to learn about the different aspects of genetic influences on development. These video lessons are short and engaging and make learning easy!

Genetic Influences on Development - Chapter Summary and Learning Objectives

Genetics are an interesting area. They can determine simple things, like the color of a person's eyes, or they can determine more complex things, like whether a person will be predisposed to psychological conditions. There is really no doubt that each person is a mixture of their mother and father. You have probably even been told at some point that you act like your mother or that the way you laugh sounds just like your father. These are not simple consequences. In fact, they may just be a matter of genetics. As you will find out in this chapter, genetics affect many areas of who you are. Some of the things you will study in this chapter include:

  • How the genetic code is linked to the determination of sex
  • How children's development is determined by the genes of the parents
  • Common genetic disorders
  • The influence of genetics on intelligence, temperament and psychological disorders

VideoObjective
The Genetic Code Explore the genetic code, and learn about unique properties, mitosis, meiosis, crossing over, twins and determination of sex.
Genetic Inheritance Examine how parental genes influence children's development with a look at concepts that include single gene-pair inheritance and sex-linked inheritance.
Genetic Abnormalities and the Impact on Human Growth and Development Find out about mutation and chromosome abnormalities, and differentiate between common genetic disorders, such as cystic fibrosis, PKU, hemophilia, sickle-cell and down syndrome.
Genetic Influence on Intellectual Abilities Study how genetics can affect intelligence.
Genetic Influence on Temperament Learn about the link between genetics and temperament.
Genetic Influence on Psychological Disorders Examine the genetic connection to psychological disorders.

8 Lessons in Chapter 3: Genetic Influences on Development
Test your knowledge with a 30-question chapter practice test
The Genetic Code: Influence of Mitosis, Meiosis & Crossing Over

1. 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.

Determination of Sex and Identical vs. Fraternal Twins

2. Determination of Sex and Identical vs. Fraternal Twins

Have you ever heard an old wives' tale about what determines whether a child will be a boy or a girl or what causes twins to be born? In this lesson, we will explore the biology behind these myths on how sex is determined and how twins are created.

The Influence of Single Gene-Pair Inheritance on Development

3. 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

4. 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 Abnormalities in Human Growth and Development

5. Genetic Abnormalities in Human Growth and Development

What are mutations and other chromosome abnormalities? How can these abnormalities affect human development? What are some common genetic disorders and their causes? Learn the answers to these questions in this lesson.

Is Intelligence Genetic? - Genes' Influence on Intellectual Abilities

6. Is Intelligence Genetic? - Genes' Influence on Intellectual Abilities

What is the role of heritability in determining our intellectual abilities? Is intelligence genetic? Explore what part our genes play and find answers to these questions in the following lesson.

Is Personality Genetic? - DNA's Influence on Temperament

7. Is Personality Genetic? - DNA's Influence on Temperament

How do genetics impact a person's temperament and personality? This lesson will introduce the world of behavioral genetics and help you understand the role our genes play in determining who we are and how we act.

Genetic Influence on Psychological Disorders

8. Genetic Influence on Psychological Disorders

Do genetics play a role in psychological disorders such as schizophrenia? What do we know about any genetic links? Does environment matter? Find the answers to these questions and more in this video lesson.

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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