| A | B |
|---|
| homozygous | 2 of the same alleles for a trait |
| heterozygous | 2 different alleles for a trait |
| heredity | passing of characteristics from parents to offspring |
| genetics | the study of heredity |
| trait | characteristic that is inherited |
| gamete | male and female sex cells |
| fertilization | joining of male and female gametes |
| hybrid | offspring formed by parents having different forms of a trait |
| allele | alternative forms of a gene |
| dominant | observed trait that masks the recessive one |
| recessive | trait that is masked by a dominant one |
| Law of Segregation | segregation of alleles and random pairing produce 4 possible allele combinations |
| phenotype | appearance of an organism |
| genotype | genetic makeup of an organism |
| Law of Independent Assortment | genes for different traits are inherited independently of each other |
