Explain the formation of gametes and zygotes and their relationship to inherited traits.

Explanation should include

• defining relevant terms
• the stages of meiosis
• the concepts of codominance, epistasis, and incomplete dominance. 

Process/Skill Questions:

• How can animals showing no signs of a genetic disease produce offspring with that disease?
• What is meant by the term homozygous recessive? Why is this important in animal breeding?
• What are the sex chromosomes? Why is this important in animal breeding?