| A | B |
|---|
| phenotype | the physical expression of a gene |
| genotype | the actual combination of alleles |
| gene | a unit that determines traits |
| alleles | differrent forms of a gene |
| dominant trait | the trait that always seems to appear |
| recessive traive | the trait the seems to disappear |
| homozygous | having two of the same alleles for the same trait |
| heterozygous | having two different alleles for the same trait |
| true-breeding plant | a plant that always produces the same trait as the parent |
| trait | a characteristic that can be passed on to an organism's offspring |
| probability | mathematical chance that an event will occur |
| meiosis | cell division that produces sex cells |
| Punnett suare | tool used to predict the probability of genotype in offspring |
| homologous chromosomes | chromosomes with matching or similar information |
| sex cells | egg or sperm |
| alleles | different forms of a single gene |
