Across
- 2. Having two different alleles for a gene .
- 5. Threadlike structures in cells that contain genetic information .
- 6. The molecule that carries hereditary information in living things .
- 8. The combination of alleles an organism has for a trait .
- 10. Sections of DNA that provide instructions for specific traits .
- 11. The observable traits or physical appearance of an organism .
- 12. alleles, Gene versions expressed only when no dominant allele is present .
Down
- 1. An organized picture of all the chromosomes in a cell is called a .
- 3. Having two identical alleles for a gene .
- 4. alleles, Gene versions that mask the effects of other allele versions .
- 7. Different versions of the same gene .
- 9. Squares Diagrams used to predict possible offspring allele combinations