Across
- 1. Passing traits from parent to offspring
- 3. Threadlike structure carrying genes
- 4. Molecule of life’s blueprint
- 5. Trait hidden unless paired
- 6. Change in DNA sequence
- 7. Unit of heredity, coded in DNA
- 8. Observable characteristic
- 10. Messenger and builder in cells
- 12. Genetic makeup of an organism
- 13. Physical expression of genes
Down
- 2. Building block of DNA and RNA
- 4. Trait that masks another
- 7. Complete set of genetic material
- 9. Variant form of a gene
- 11. Three-letter genetic code