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Ch5 Sec2

Ch5 Sec2. Human Genetic Disorders. Key Concepts. What are two major causes of genetic disorders in humans? How do geneticists trace the inheritance of traits? How are genetic disorders diagnosed and treated?. Key Terms. Genetic disorder Pedigree Karyotype. Ch5 Sec2.

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Ch5 Sec2

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  1. Ch5 Sec2 Human Genetic Disorders

  2. Key Concepts • What are two major causes of genetic disorders in humans? • How do geneticists trace the inheritance of traits? • How are genetic disorders diagnosed and treated?

  3. Key Terms • Genetic disorder • Pedigree • Karyotype

  4. Ch5 Sec2 • Causes of Genetic Disorders • Genetic disorder is a abnormal condition that a person inherits through genes or chromosomes • Some genetic disorders are caused by mutations in the DNA of genes. Other disorders are caused by changes in the overall structure or number of chromosomes • Cystic Fibrosis • Sickle-Cell Disease • Hemophilia • Down Syndrome

  5. Ch5 Sec2 • Pedigree is a chart or “family tree” that tracks which members of a family have a particular trait • One important tool that geneticists use to trace the inheritance of traits in humans is a pedigree

  6. Ch5 Sec2 • Managing Genetic Disorders • Today, doctors use tools such as karyotypes to help diagnose genetic disorders. People with genetic disorders are helped through medical care, education, job training, and other methods • Karyotypes is a picture of all the chromosomes in a cell • Genetic Counseling • Dealing with Genetic Disorders

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