| A | B |
| codominance | heterozygous condition shows BOTH of the homozygous traits (examples-red AND white hairs) |
| incomplete dominance | the heterozygous condition is a blend of two traits |
| multiple alleles | more than two possibilities for a gene |
| sex-linked traits | more common in males than in females |
| pedigree | family tree |
| epistasis | one GENE hides the affect of another |
| dominant | one ALLELE hides the affect of another |
| autosome | non-sex chromosome |
| test cross | determines if a dominant parent is homozygous or heterozygous |
| polygenic inheritance | controled by more than one gene |