| A | B |
|---|
| HEREDITY | The passing on of characteristics from parenta to offspring. |
| GENETICS | The branch of biology that studies heredity |
| TRAITS | Characteristics that are inherited. |
| GAMETES | Another name for sex cells. |
| FERTILIZATION | The uniting of male and female gametes. |
| DOMINANT | The trait that is observed, opposite of recessive. |
| RECESSIVE | The trait that seems to disappears. |
| LAW OF SEGREGATION | Mendel's conclusion that a parent passes on oneallele for each trait to its offspring. |
| PHENOTYPE | The way an organism looks. |
| GENOTYPE | The gene combination of an organism,type of genes. |
| HOMOZYGOUS | Two alleles for the trait are the same, RR. |
| HETEROZYGOUS | Two alleles for the trait are different. Rr. |
| DIHYBRID CROSS | A cross with two traits. |
| MONOHYBRID CROSS | A cross with one trait. |
| F1 | The first generation. |
| Rr x Rr | 3:1 ratio |
| homozygous red,homozygous tall | RRTT |
| HOMOZYGOUS SHORT | tt |
