Across
- 2. Masked by dominant
- 4. A trait always expressed when present
- 9. One of each gene for a trait
- 10. Different form of a gene
- 11. Genetic code combination for a trait
- 12. When both genes are expressed
Down
- 1. Physical appearance for a trait
- 3. Unit of inherited material carried on chromosome
- 5. A characteristic inherited from a parent
- 6. Two of the same genes for a trait
- 7. Study of heredity
- 8. Many genes together express a trait