Selective breeding

• What is another term for selective breeding?

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

  Selective breeding and its impacts
• What is one impact of selective breeding on food plants?

  It affects domesticated animals
• What is a disadvantage of selective breeding?

  It can lead to inbreeding
• What type of animals are wolves?

  Wild animals
• How did humans utilize wolves thousands of years ago?

  For protection and companionship
• What process did humans use to produce dogs from wolves?

  Selective breeding
• What are four examples of selective breeding?

  • Domestic dogs for gentle nature
  • Wheat for disease resistance
  • Cows for more meat or milk
  • Plants for large or unusual flowers
• What is the first step in selective breeding for larger cows?

  Select a mixed population of cows
• What does sexual reproduction produce in the offspring?

  Variation
• What do we do after selecting the largest male and female cows?

  Breed them together
• What do we do with the offspring of the largest cows?

  Select the largest male and female
• How long do we continue the selective breeding process?

  Over many generations
• What is a major problem with selective breeding?

  Inbreeding can occur
• What can inbreeding cause in animals or plants?

  Prone to disease or defects
• What is an example of inherited disorders in dog breeds?

  Joint problems and heart disease
• Where can you find questions on selective breeding?

  • In the vision workbook
  • Available via a link in the video