Sara Moseng's Extra Credit

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Across
  1. 1. Where two alleles are the same
  2. 3. Observed physical characteristic
  3. 5. If allele is present, this gene will be expressed
  4. 6. Segment of DNA that codes for a trait
  5. 8. A change in the characteristics of a species that occurs over a period of time
  6. 9. The allele combination for a given trait
  7. 13. There are 2.5 _____ kinds of organisms
Down
  1. 1. Where two alleles are different
  2. 2. Trait that is not expressed when dominant is present
  3. 4. Characteristics passed from one generation to the next
  4. 7. Passing of traits from parents to offspring
  5. 10. Genes that have not been mixed
  6. 11. Genes that have been mixed
  7. 12. Different versions of genes represented by letters
  8. 13. The father of genetics