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This Concept Map, created with IHMC CmapTools, has information related to: Group 5 Mini map 2, Trisomy of chromosome 21 causes Down Syndrome, Homologous Chromosome pairs Are gene pairs formed in Meiosis, centromere divides and the chromatids move in opposite directions anaphase II, Trisomy is the effect of nondisjunction that results in more than 2 chromosomes, another form of nondisjuntion that results in less than 2 chromosomes is Monosomy, Anaphase I breaks apart homologous chromosome pairs before sister chromatids can be seperated in anaphase II, Down Syndrome Caused by a nondisjunction, Monosomy can be diagnosed through tests of the fetus's Amniotic fluid, Monosomy is when the speration of sister chromotides results in one LESS chromosome(s), Homologous Chromosome pairs fail to separate, causing a nondisjunction, Amniotic fluid can be tested to reveal chromosome abnormalities such as Trisomy, Aneuploidy having an abnormal number of chromosome(s), Amniotic fluid Contains the baby's chromosome(s), Homologous Chromosome pairs Separate in Anaphase I, nondisjunction is caused during Meiosis, Telomere is a structure on th e chromosome as well as the centromere, centromere where the chromosomes line up attched to spindle fibers during Meiosis, Chronic Villus Sampling Take cells that are DNA enriched, later are grown and put into a Karyotype, Amniotic fluid is taken and used in Amniocentesis, Karyotype shows all chomosomes and looking at the 21st can be an effective way to test for Down Syndrome, Polyploidy Having more than two sets of Homologous Chromosome pairs