Across
- 3. the process in which a new organism begins to form when egg and sperm cells join
- 4. each specific characteristic
- 6. is hidden whenever the dominant allele is present
- 8. used to describe the factors that control a trait
- 9. the passing of physical characteristics from parents to offspring
- 10. the offspring of many generations that have the same form of trait
Down
- 1. the scientific study of heredity
- 2. one whose trait always shows up in the organism when the allele i
- 5. the different forms of a gene
- 7. an organism that has two different alleles as a trait