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This Concept Map, created with IHMC CmapTools, has information related to: Team Satisfaction-Regenerating Reuniclus- G3 M2, Telomere are very important to chromosomes and just as valuable as Centromere, Centromere hold sister chromatids together; are located at the center of the Chromosomes, Down Syndrome Also known as Trisomy 21 a chromosome defect, causing intellectual impairment and physical abnormalities. It arises from a defect involving chromosome 21, usually an extra copy. It is a common Trisomy, Chorionic Villus Sampling is a prenatal test in which a sample of chorionic villi is removed from the placenta for testing. Can be used to test for Nondisjunction, Aneuploidy could be caused by cancer but occurs usally from Nondisjunction, Meiosis has been succesful if there is no Nondisjunction, Amniotic Fluid carries fetal cells & is used in Amniocentesis, Amniocentesis A procedure in which a small sample of amniotic fluid is drawn out of the uterus through a needle inserted in the abdomen. The fluid is analyzed to determine the gender of the fetus or the presence of genetic abnormalities. Chromosomes, Chromosomes variations from the number 46 (such as 45 or 47) are considered Aneuploidy, Anaphase II Is a stage of cell division (before telophase, and after metaphase) in which sister chromatids separate. Only occurs in Meiosis, Homologous chromosome pairs are pulled apart by microtubules which attaches to theirtheir Centromere, Trisomy is a condition when there are three copies of one Chromosomes, Karyotype can help you sort and identify the chromosome to find out if this condition is present known as Down Syndrome, Chromosomes failure to separate during either meiosis phases is called Nondisjunction, Telomere protects the end of the chromosome from deterioration or from fusion with neighboring Chromosomes, Homologous chromosome pairs must succefully separate during Anaphase I, Anaphase II is the divison of each Centromere, Homologous chromosome pairs failure to separate during the anaphases is called a Nondisjunction, Karyotype goal is to identify abnormalities in Chromosomes, Anaphase I Is a stage of cell division (before telophase, and after metaphase) in which homologous pairs seperate. This occurs in Mitosis and Meiosis