Across
- 3. what the genes physically look like
- 5. the trait that is more likely to be seen in the offspring's DNA
- 9. the cross between two parents that determines the outcome of the offspring's genes
- 11. a form of the gene
- 12. carries genes
- 14. the passing down of genes
- 15. a third copy in the 21st chromosome
Down
- 1. a change in the DNA sequence
- 2. the next generation
- 4. the gene for a trait that has two different alleles
- 6. the characteristics of an organism
- 7. the weaker form of the trait
- 8. the study of heredity
- 10. where a mutation occurs
- 13. the gene for a trait that has two identical alleles