| A | B |
| Hybrid | recieves different genetic info. from each parent. Sybolized by a uppercase letter paired with a lower case (Bb) |
| Allele | one form of a gene, represented by an uppercase or lowercase letter. every gene has 2 alleles |
| Dominate | the allele that controlls the trait is the dominate allele; it is the one seen when a dominate is paired with a recessive allele |
| Recessive | triat repressented by a lowercase letter, only seen when paired with another recessive allele; always hidden by a dominate trait |
| Homozygous | 2 identical dominate alleles paired together, represent a dominate trait |
| Heteruzygous Dominate | it is the dominate trait represented by 2 different alleles; Tt is heterozygous for tall; always has a recessive paired with a dominate allele; same as hybrid |
| P1 Generation | refers to the 1st parental generation; the parents |
| F1 Generation | refers to the offspring of the P1 generation or the "1st filial generation" |
| Genotype | refers to the organisms exact genetic makeup as in BB for brown hair |
| Phenotype | refers to what you see, or the exact physical characteristics; brown hair |
| Punnet Square | grid used to do a cross between 2 organsims to predict what the offspring will look like |
| Monohybrid Cross | predicts the outcome of a cross involving 1 trait |
| Dihybrid Cross | predicts the outcome of a cross involving 2 traits |
| DNA | is composed of sugars, nitrates, and nitrogenous bases |
| Heredity | the study of genetics |