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