Across
- 5. describe a factor that controls a trait
- 7. when egg and sperm cells join in the process
- 9. one that doesn't show up
- 10. passing of physical characteristics
Down
- 1. offspring of many generations that have the same trait
- 2. one who's trait always shows up
- 3. organism that has two different alleles
- 4. specific characteristics
- 6. study of heredity
- 8. different from of gene