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Bio. Ch. 12.2

Bio. Ch. 12.2 Terms

trisomy 21 condition in which an individual has three number 21 chromosomes, resulting in Down syndrome
Down syndrome general set of symptoms in people with trisomy 21
nondisjunction event during meiosis in which homologous chromosomes or sister chromatids fail to separate
duplication change to a chromosome in which part of the chromosome is repeated
deletion change to a chromosome in which a fragment of the chromosome is removed
inversion change to a chromosome in which a fragment of the original chromosome is reversed
translocation change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
transposon genetic element that moves from one location to another in a genome
Created by: mjnlewis