| Term | Definition |
| purebred | genetically indentical offspring produced through self pollenation |
| alleles | matching genes that control contrasting characteristics of a trait, leike color |
| dominant allele | allele that is expressed when it present with a recessive allele |
| recessive allele | an allele that it's trait is only expressed when it is present with another recessive allele |
| homozygous | when and oprganism has two dominant or two recessive alleles for a trait |
| heterozygous | when an organism has 1 dominant allele and 1 recessive allele for a trait |
| law of independent assortment | when gametes are maade the genes for traits found on different chromosomes seperate independently |
| law of segregation | the diviing of alleles into separate gametes from each parent |
| genotype | the alleles that an organism inheerits from its parent |
| phenotype | the physical appearance (trait) that the organism displays |
| genetics | the science that involves studying patterns of inheritance |
| probability | mathematical chance that an event will ocurr |
| monohybride cross | a cross in which only one trait is studied |
| dihybride corss | a cross in which w traits are studied |