Across
- 5. having two different alleles
- 9. different forms of a gene
- 10. caused by defective genes on the x chromosome
- 12. hidden in the presence of a dominant allele
Down
- 1. having two of the same alleles
- 2. a chart showing the history of a trait in a family
- 3. father of genetics
- 4. always expresses; only needs one allele to be expressed
- 6. Both alleles are dominant, so you can see both traits in the heterozygote
- 7. physical expression of genes
- 8. genetic makeup in letters
- 11. basic unit of heredity