Genetics

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Across
  1. 4. the letters for a trait are the same
  2. 5. one trait being investigated
  3. 7. physical expressions of genes
  4. 9. the trait that can be hidden
Down
  1. 1. the letters for a trait are different
  2. 2. two traits being investigated
  3. 3. the allele that always expresses when present
  4. 5. who discovered the basis of genetics?
  5. 6. the genetic information for a trait
  6. 8. a single trait represented by a single letter