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Karyotype

Set of photographs of chromosomes grouped in order in pairs

Sex chromosome

One of two chromosomes that determine an individual's sex; females have two X chromosomes; males have one X and one Y.

Autosome

Autosomal chromosome; chromosome that is not a sex chromosomes

Pedigree

Chart that shows the relationships within a family

Sex-linked gene

Gene located on the X or Y chromosome

Nondisjunction

Error in meiosis in which homologous chromosomes fail to seperate

DNA fingerprinting

Analysis of sections of DNA that have little or no known function, but vary widely from one individual to another, in order to identify individuals.

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