Genetics

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Across
  1. 4. 1:2
  2. 7. lower case letter
  3. 9. past down
  4. 11. square 4 squared table
  5. 13. appearance of a trait
  6. 18. Mix or blend ; 3 phenotypes
  7. 19. types AB,A,B,O
  8. 20. parental generation
Down
  1. 1. characteristic
  2. 2. several forms of a gene
  3. 3. single trait influenced by many genes
  4. 5. basic unit of heredity
  5. 6. homozygous trait
  6. 8. upper case letter
  7. 10. both alleles expressed equally; 3 phenotypes
  8. 12. after generation 1
  9. 14. Tt
  10. 15. A diagram that shows the inheritance of a trait through generations. It looks like a "family tree" that shows the inheritance of the trait.
  11. 16. genetic makeup
  12. 17. TT