Creators without color

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Across
  1. 2. Determine a particular trait
  2. 4. Pigment genes
  3. 5. Without these it's hard to spot prey or predators difficult
  4. 9. Inherited condition
  5. 11. Regular color
  6. 12. Can’t keep warm the typical way without the risk of sunburn
  7. 14. Need the sun to get warm
  8. 15. Carry the trait
  9. 17. Study genetics and family traits
  10. 18. Don't have colored eyes
  11. 19. Shown with a capital letter
  12. 20. Albino orangutan
Down
  1. 1. Shown with a lowercase letter
  2. 3. Can give skin cancer
  3. 6. Gives a brown color
  4. 7. Gives color
  5. 8. Genes
  6. 10. No color
  7. 13. Endangered species
  8. 16. Colored white