Across
- 4. Features that help to identify something
- 6. an organism's physical appearance, or visible traits
- 7. a trait that always shows if it is present
- 8. a different form of a gene
- 9. an organism's genetic makeup, or allele combinations
Down
- 1. a trait that only shows up if it is the only existing trait
- 2. any difference between individuals of the same species
- 3. a number that describes how likely it is that an event will occur
- 5. the passing of traits from parents to offspring