Human Karyotype- (Diploid= 2n). Normal human- how many homologous pairs? What is the sex? How many chromosomes does each parent contribute?. What if chromosomes fail to separate properly?. Nondisjunction Failure of chromosomes to separate properly during meiosis.
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Trisomy 13- cleft palate, eye brain circulatory defects
Trisomy 18- death in months
Trisomy 16-death in months
SEX CHROMOSOMES TRISOMIES
Turner Syndrome-X0- only viable monosomy in humans, Never mature sexually
Klinefelter Syndrome XXY
XYY- Super male- aggression
NOTE: the role of the Y chromosome…its presence yields malesness- otherwise default to female