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Chromosome abnormality: Quiz


Question 1: ________ is an example of a monosomy where the individual is born with only one sex chromosome, an X.
Down syndromeTurner syndromeICD-10 Chapter XVII: Congenital malformations, deformations and chromosomal abnormalitiesKlinefelter's syndrome

Question 2: This is called ________ (an abnormal number of chromosomes), and occurs when an individual is missing either a chromosome from a pair (monosomy) or has more than two chromosomes of a pair (Trisomy, Tetrasomy, etc).
ICD-10 Chapter XVII: Congenital malformations, deformations and chromosomal abnormalitiesChromosomal translocationAneuploidyDown syndrome

Question 3: Chromosome anomalies usually occur when there is an error in cell division following ________ or mitosis.
PreprophaseInterphaseCell cycleMeiosis

Question 4: In humans, an example of a condition caused by a numerical anomaly is ________, also known as Trisomy 21 (an individual with Down Syndrome has three copies of chromosome 21, rather than two).
XYY syndromeTurner syndromeDown syndromeTrisomy 18


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