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Genetic disorders

QuestionAnswer
Non-disjunction the failure of chromosomes (or tetrads) to separate during anaphase I or II in meiosis
Monosomy Condition when there is a missing chromosome
Trisomy Condition when there is an extra chromosome
Down Syndrome Trisomy 21
Edward’s Syndrome Trisomy 18
Patau’s Syndrome Trisomy 13
Klinefelter Syndrome Having extra sex chromosomes (47, XXY)
Jacob’s Syndrome Having extra Y chromosomes (XYY)
Triple X Syndrome Having extra X chromosomes (47, XXX)
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