| A | B |
|---|
| DNA | set of instructions located in the nucleus of every cell |
| gene | a piece of the instructions that will determine one trait, such as attached or unattached ear |
| chromosome | a strand of DNA that contains the instructions or genes for several traits |
| sex cell/gamete | cell that only has 23 chromsomes |
| allele | each version of a trait inherited from a parent. |
| dominant allele | this is the form of a trait that will always show up if it is present |
| recessive allele | the allele that will remain hidden or not used unless there are 2 of them. |
| purebred/homozygous | combination of 2 of the same alleles |
| hybrid/heterozygous | combination of 1 dominant and one recessive gene |
| genotype | the 2 letter conbination that represents an organism's alleles |
| phenotype | physical description of an organism |
| pedigree | a chart of an individual's ancestors |
| generation | all of the offspring that are at the same stage of descent from a common ancestor |
