About This Chapter
Genotypes & Phenotypes - Chapter Summary
This chapter provides an in-depth analysis of genotypes and phenotypes. Feel confident that you understand their definitions and characteristics by reviewing short and engaging lessons. Also, get a quality understanding of polygenic inheritance. When finished, you will be able to:
- Define genotypes
- Discuss the role of genotypes in determining how your body works and how you look
- Share the meaning of a phenotype and how it is influenced by genes
- Differentiate between dominant and recessive phenotypes
- List and discuss types of influences on phenotypes
- Explain the process of polygenic inheritance
If you are bogged down by a busy schedule, this chapter enables you to study anytime and from any location you desire. All lessons are accessible 24/7 from any computer, smartphone, or tablet with an Internet connection. Test your understanding of the lessons you review by taking accompanying multiple-choice quizzes. Assess your comprehension of the entire chapter by taking the broader practice exam.
1. What are Genotypes? - Definition & Examples
In this lesson, you will learn about what genotypes are, where they come from and how they play a major role in determining how your body works and what you look like.
2. What Is a Phenotype? - Definition & Example
Do you have blue eyes or brown eyes, or something else, like hazel? That's your phenotype for eye color. Discover examples of phenotypes, and how they are (partly) determined by your genes.
3. Differences Between Dominant & Recessive Phenotypes
In this lesson, we're going to compare and contrast dominant and recessive phenotypes. Here, you'll understand differences in how genes create dominant versus recessive phenotypes, how they are inherited, and different types of dominant and recessive inheritance.
4. Types of Influences on Phenotypes
In this lesson, we'll look at different factors that affect phenotype. We'll examine how genetics and environmental factors can change how DNA is expressed, as well as modifications to the DNA by other molecules, such as epigenetic changes.
5. Polygenic Inheritance: Definition & Examples
In this lesson you will learn how traits like your height, weight, hair color, and skin pigmentation are determined by the complex interaction of several different genes in a process called polygenic inheritance.
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Other chapters within the VCE Biology: Exam Prep & Study Guide course
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- Functioning Systems of Living Things
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- Asexual & Sexual Reproduction
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- Chromosomes & Chromosome Disorders
- Pedigrees & Genetic Inheritence
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- Gene Structure & Regulation
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- Cellular Respiration Overview
- Cellular Signals
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- Immunity & the Immune System
- Genetics & Populations
- Biodiversity Over Time
- Relatedness Between Species
- Human Evolution
- DNA Manipulation
- Biological Knowledge & Society
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