Why did two black horses produce a chestnut foal? Why does a horse appear nearly white while its parents were solid? To understand how different coat colors and patterns are inherited and answer questions like these, we need to have a basic understanding of some genetic concepts first.

Genetics Chapter 1: Genes
In this chapter, we introduce the concept of genes, chromosomes, and how they are passed on from parents to offspring.
Genetics Chapter 2: Genetic variation
In this chapter, we will explore DNA sequences, genetic variation and mutations.
Genetics Chapter 3: Alleles
In this chapter, we will discuss how alleles and their interactions determine which traits appear in a horse.
Genetics Chapter 4: Predicting outcomes
In chapter 4 of our Genetics series, we will learn how to use Punnett squares to predict possible outcomes when breeding horses.