| A | B |
| Dominant Allele | An allele whose traits always show up in the organism when the allele is present. |
| Recessive Allele | An allele that is masked when a dominant allele is present |
| Homozygous/Purebred | Having two identical alleles for a trait |
| Heterozygous/Hybrid | Having two different alleles for a trait |
| Trait | A characteristic that an organism can pass onto its offspring through its genes |
| Chromosome | Contains the DNA which carries the genetic information that controls inherited characteristics such as eye color and blood type |
| Gregor Mendal | An Austrian monk that discovered many of the genetic principles that still exist today. The ?Father of Genetics? |
| Genotype | An organisms genetic makeup or Allele combinations(Hh) |
| Phenotype | An organisms physical makeup or traits(hair color, height) |
| Punnett Square | A chart that shows all the possible combinations of Alleles that can result from a genetic cross. |
| Probability | the likelihood that an event will take place |
| Heredity | The passage of traits from parents to offspring |
| Meiosis | The process that occurs in sex cells(sperm and egg) by which the number of chromosomes is reduces by half. |
| Alleles | one of the alternate forms of a gene that governs a characteristic, such as hair color |
| Capital Letter | Is used to represent a dominant allele(S) |
| Lower Case Letter | Is used to represent a recessive allele(s) |
| Pistil | Female structure of a flower that produces egg cells |
| Stamen | Male structure of the flower that produces pollen(sperm cells) |
| Genes | one set of instructions(DNA) on a chromosome that codes for a specific trait |