Variation

• What is variation?

  Differences between individuals of the same species
• What causes genetic variation?

  Inheritance of different alleles from parents
• What causes environmental variation?

  Lifestyle and surroundings
• What is continuous variation?

  Variation with a wide range of values
• What is discontinuous variation?

  Variation that falls into distinct groups
• Which two things cause variation?

  Genetics and environment
• True or false: Identical twins have the same genetic variation?

  True
• Which process introduces genetic variation in gametes?

  Meiosis
• Can both genetic and environmental factors affect a single characteristic?

  Yes
• What is mutation?

  A change in the DNA sequence
• Which of the following is not a cause of variation?

  Cloning