Across
- 2. factors that control traits
- 5. an organism's physical appearance
- 7. physical characteristics of organisms
- 8. an organism with two identical alleles for a trait
- 10. allele whose trait is masked in the presence of a dominant allele
- 13. an organism with two different alleles for a trait
- 14. the different forms of a gene
Down
- 1. an organism's genetic make up
- 2. the scientific study of heredity
- 3. the letter that represents the dominant allele
- 4. an allele whose trait always shows up in the organism
- 5. chart used to show possible gene combinations
- 6. a number that describes how likely it is that an event will occur
- 9. the passing of traits from parent to offspring
- 11. a condition in which neither of two alleles of a gene is dominant or recessive
- 12. the letter that represents the recessive allele
