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Ch 6 Pedigree Analysis and Applications

Ch 6 Pedigree Analysis and Applications. Outline. Methods used to study human genetics Methods used for genetic testing. Methods to study human genetics. Pedigrees Twin Studies Adoption Studies. Pedigree. Pictorial representation of family history Uses symbols to provide information

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Ch 6 Pedigree Analysis and Applications

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  1. Ch 6 Pedigree Analysis and Applications

  2. Outline • Methods used to study human genetics • Methods used for genetic testing

  3. Methods to study human genetics • Pedigrees • Twin Studies • Adoption Studies

  4. Pedigree • Pictorial representation of family history • Uses symbols to provide information • Must know the meaning of the symbols • Pedigrees can tell us: THE PATTERN OF INHERITANCE

  5. A. EXAMPLES: PATTERNS OF INHERITANCE & PEDIGREES Amyotrophic lateral sclerosis ALS

  6. B. EXAMPLES: PATTERNS OF INHERITANCE & PEDIGREES Hypophosphatemia

  7. TWIN STUDIES • Monodizygotic • Dizygotic

  8. Genetics vs Environment • Concordance

  9. Genetic Testing Chorionic villus aminocentesis

  10. Genetic Testing • New born Testing • Testing for carriers (heterozygotes) • Screening before symptoms occur.

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