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Genetic Disorders

Genetic Disorders. Biology. Trisomy. There are three chromosomes instead of two on an autosome . Humans can o nly survive with three chromosomes on numbers 13, 18, and 21. . Monosomy . One member of a chromosomal pair is missing. Down Syndrome. Trisomy 21

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Genetic Disorders

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  1. Genetic Disorders Biology

  2. Trisomy • There are three chromosomes instead of two on an autosome. • Humans can only survive with three chromosomes on numbers 13, 18, and 21.

  3. Monosomy • One member of a chromosomal pair is missing.

  4. Down Syndrome • Trisomy 21 • There are three chromosomes on number 21. • Characteristics • Small Head • Slanted eyes • Infertility in males • Cognitive disabilities

  5. Kleinfelter’s Syndrome • Characteristics • Males are sterile • Some cognitive disabilities • Tall stature • XXY

  6. Polydactyly • People with this disorder have an extra finger or toe. • Small piece of extra tissue; often contains bones with no joints. • 1 in every 500 births

  7. Hairy Ears

  8. Hairy Ears • X dominant sex linked trait.

  9. Color Blindness • A color vision deficiency • Color blindness can be inherited genetically • It is most common from mutations on the X chromosome.

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