| A | B |
|---|
| Genetics | The study of how traits are inherited. |
| Heredity | The passing of traits from parents to offspring. |
| Gregor Mendel | An Austrian monk who experimented with pea plants and is considered the father of genetics. |
| Punnett Square | A diagram used by biologists to predict the outcome of a genetic cross. |
| Dominant | A genetic trait expressed with at least one capital letter. This allele covers up other alleles on a gene. |
| Recessive | A genetic trait expressed with a lower case letter - this trait only shows up if 2 lower case letters are present. |
| Allele | An alternate form of a gene. |
| Genotype | The letters show the genetic makeup of organisms. |
| Homozygous | An organism with two identical alleles for a trait. |
| Heterozygous | An organism that has two different alleles for the same trait. |
| phenotype | The physical expression of a particular genotype. |
| Incomplete Dominance | A condition in which the trait produced is intermediate between the phenotypes of the parents. EX. A white and red flower combine to make a pink flower. |
| Probability | The likelihood that a specific event will occur. |
| Codominance | A condition in which both alleles for a trait are expressed when present, Ex. blood types. |
| P generation | The parent generation - the first two individuals that mate in a genetic cross. |
| F1 generation | The first offspring from a cross between the parent generation. |
| F2 generation | The offspring from a cross between two F1 individuals. |
| multiple alleles | A trait that is controlled by more than 2 alleles. |
