Unformatted text preview: low IQ. Nondisjunction –The failure of homologous chromosomes or sister chromatids to separate during meiosis,resulting in unequal numbers of chromosomes in the daughter cells. Nondisjunction results in aneuploidy. Pedigree – A familial history. Pedigrees can be created, generally in the form of diagrams, that trace the history of inheritable diseases through a family. Polyploidy – A process by which one or more sets of chromosomes are added to the genome of an organism. Human beings cannot survive in a polyploidy state, but may plants flourish in it. Polyploidy is a means by which speciation can occur [most often in plants] in a single generation. Recessive Disorder – Meaning a genetic disorder that will not exist in the presence of a functional allele....
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- Fall '10