Across
- 3. hidden when with a dominant
- 4. a combination of traits
- 6. always shown if present
- 7. has identical alleles
- 9. a physical expression of a gene
- 10. square shows all possible combinations of alleles
- 11. have different alleles
Down
- 1. one of two or more versions of a gene
- 2. is a cross of traits
- 5. father of genetics
- 8. study of heredity