Across
- 3. the physical appearance for a trait
- 7. two of the same genes for a trait
- 8. study of heredity
- 9. when both genes are expressed
- 10. unit of inherited material carried on the chromosome
- 11. a characteristic inherited from a parent
Down
- 1. one of each gene for a trait
- 2. masked by dominant
- 4. many genes together express a trait
- 5. a trait always expressed when present
- 6. the genetic code combination for a trait