| A | B |
|---|
| karyotype | photograph of chromosomes grouped in order in pairs |
| sex chromosome | one of two chromosomes that determine an individual's sex |
| autosome | chromosome that is not a sex chromosome |
| pedigree | chart that shows the relationship within a family |
| sex-linked gene | gene located on the X or Y chromosome |
| nondisjunction | error in meiosis in which homologous chromosomes fail to separate |
| DNA fingerprinting | analysis of sections of DNA that have little or no known function, but vary widely from one individual to another, in other to identify individual |
| . | . |
