Selective Breeding

• What is another term for selective breeding?

  Artificial selection
• What should you be able to describe by the end of the video?

  You should be able to describe selective breeding, its impact on food plants and domesticated animals, and its disadvantages.
• Why did humans begin to selectively breed wolves?

  To utilize their ability to alert to threats, protect, and provide companionship.
• What is the first step in the selective breeding process for large cows?

  Select the largest male and female from a mixed population of cows.
• What is the outcome of sexual reproduction in the context of selective breeding?

  It produces variation in the offspring, mixing larger and smaller animals.
• What is the process of selective breeding for large cows?

  1. Select the largest male and female from a mixed population
  2. Breed them together
  3. Select the largest male and female offspring
  4. Breed the selected offspring together
  5. Repeat over many generations until all offspring are large
• What is a major problem associated with selective breeding?

  Inbreeding can occur, causing health issues and inherited defects.
• How can inbreeding affect selectively bred animals or plants?

  It can make them prone to diseases or inherited defects.
• What are some inherited disorders that can develop in selectively bred dog breeds?

  • Joint problems
  • Heart disease
  • Epilepsy