| A | B |
|---|
| Heredity | the passing of characteristics from parent to offspring |
| Genetics | the scientific study of heredity |
| Fertilization | when sperm and egg cells join |
| Purebred | offspring of many generations that have the same trait - homozygous |
| Alleles | different forms of a gene |
| Dominant Allele | one whose triat always shows up when the allele is present |
| Recessive Allele | is hidden whenever the dominant allele is present |
| Probability | describes how likely it is that an event will occur. |
| Phenotype | physical appearace or visible trait |
| Genotype | an organisms genetic makeup, or alleles |
| Homozygous | has two identical alleles for a trait |
| Heterozygous | has two different alleles for a trait |
| Incomplete Dominance | one allele is only partially dominant over another |
| Codominance | when both alleles are expressed equally |
| Multiple alleles | three or more possible alleles determine a trait |
| Polygenic Inheritance | more than one gene affects a trait |
| Meiosis | the process where the number of chromosomes is reduced by half to produce sex cells |
