| A | B |
|---|
| Phenotype | an organism's physical appearance i.e. brown eyes |
| Punnett Sqare | Used to organize possible offspring combinations |
| Homozygous | An organism with two same alleles either dominant or recessive |
| Heterozygous | An organism with one dominant and one recessive allele |
| Cross-Pollination | When a plant fertilizes another plant |
| Probability | Mathematical chance that something will happen |
| genotype | Genetic makeup or allele combination of an organism |
| Gregor Mendel | Father of Genetics. Studied heredity in Pea plants |
| Genetics | The study of heredity, the passing of traits from parents to offspring |
| carrier | A person who passes an allele on but does not show it (hiding) |
| mutation | A change in the genetic material |
| Karyotype | Picture of chromosomes |
| Co-dominance | Both alleles are dominant and are expressed |
| Sex chromosomes | genes that determine the sex |
| Genes | Instructions for an inherited trait |
| Pedigree | Diagram used to trace a trait through generations in a family |
| Self-Pollinating | When a plant pollinates itself |
| True-breeding | Pure bred throughout generations |
| Incomplete Dominance | When each allele has it's own degree of influence (blending) |
| Meiosis | The process of cell division found only in sex cells which reduces the chromosome number to one-half (23) |
