| A | B |
|---|
| character | a heritable feature such as flower color that varies among individuals. |
| Trait | Each variant for a color such as puprle or white flowers is called a trait |
| True breeding | when the plants self pollinate all their offspring are from the same variety |
| hybridization | the mating or crossing of two varieties |
| Monohybrid cross | The term for a cross that tracks the inheritance of of a single character-ex:flower color |
| alleles | alternative versions of genes |
| law of segregation | The seperation of alleles into seperate gametes |
| homozygous | an organism having a pair of identical alleles for a character |
| genotype | an organisms genetic makeup |
| dihybrid cross | a mating of parental varieties differing in two characters |
| a testcross | is designed to reveal the genotype of an organism that exhibits a dominant trait |
| law of independant assortment | the independant segregation of each pair of alleles during gamete formation |
| incomplete dominance | where the f1 hybrids have an appearance somewhere in between the phenotypes of the 2 parental varieties |
| Incomplete dominance | The phenotypes of the heterozygote and dominant homozygote are indistinguishable |
| codominance | in which both alleles are seperatly manifest in the phenotype |
| pleiotropy | The ability of a gene to affect an organism in many ways |
| epistasis | When a gene at one locus alters the phenotypic expression of a gene at a second locus |
| Quantitative charactes | a heretible feature in a population that varies continuosly as a result of environmental influences and the additive affect of two or more genes |
| polygenic inheritance | an additive affect of two or more genes on a single phenotypic character |
| norm of reaction | the range of phentypic possibilities for a single genotype as influenced by the environment |
| muiltifactoral | meaning that many factors both genetic and environmental collectivaly influence phenotype |
| pedigree | a family tree describing the occurance of heritable characters in parents andoffspring across as many generations as possible |
