Across
- 8. One dominant and one recessive allele
- 11. Two dominant or Two recessive alleles
- 12. This type of trait always shows itself if present
- 13. Results in two identical cells
- 15. A unit of heredity passed from parent to offspring
- 16. Any change in the DNA sequence in a cell
- 18. Only expressed when there are two copies
Down
- 1. A threadlike structure that contains genes
- 2. The product of the reproductive process
- 3. Observable physical characteristics
- 4. When two dominant alleles are present
- 5. The study of patterns of genetic inheritance
- 6. Results in four non-identical cells
- 7. A form of asexual reproduction
- 9. The universal blood donor
- 10. A set of genes that determines a trait
- 14. A characteristic determined by genes
- 17. A form of a gene pair