| A | B |
| Gregor Mendel | father of genetics |
| pea plants | what Mendel studied |
| homozygous | having the same alleles |
| complete dominance | either T or t (must have 2 tt's to show recessive trait) |
| incomplete dominance | dominant and recessive traits blend (red+blue=purple) |
| co-dominance | both traits appear (black and white speckled chicken) |
| random selection | pattern of most genetics. luck of the draw |
| multiple-allele pattern | more than two genes involved |
| A and B | blood types always expressed |
| O | The least dominant blood type |
| 2 alleles per gene | one gene = two alleles |
| meiosis | results in 4 new cells |
| diploid cells | has 46 chromosomes |
| haploid cells | 23 chromosomes |
| gamete | sex cell |