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Pedigrees

Pedigrees. Tracking Traits. Pedigrees. Pedigrees. Punnet’s Squares -purpose? Used to determine the probability of obtaining offspring of a given genotype/phenotype Constructed using the genotypes of. Pedigrees. Pedigree – purpose? Used to track a given trait through a family’s history

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Pedigrees

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  1. Pedigrees Tracking Traits

  2. Pedigrees Mr. Drivas and Mr. Kitchen

  3. Pedigrees Punnet’s Squares -purpose? • Used to determine the probability of obtaining offspring of a given genotype/phenotype • Constructed using the genotypes of Mr. Drivas and Mr. Kitchen

  4. Pedigrees Pedigree – purpose? • Used to track a given trait through a family’s history • Depends on information obtained about related individuals Mr. Drivas and Mr. Kitchen

  5. Punnet’s Square Probabilities associated with offspring of certain genotype/phenotype Hypothetical - probability Future – unborn Pedigree Tracking of the Inheritance of a trait throughout the history of a family Real history Past – alive or once alive Pedigrees Differences Mr. Drivas and Mr. Kitchen

  6. Pedigrees • Male • Female • Individual with trait • Carrier of trait (recessive) Mr. Drivas and Mr. Kitchen

  7. Pedigrees • Dead Individual • Fraternal Twins • Identical Twins Mr. Drivas and Mr. Kitchen

  8. I 1 2 II 1 2 Pedigrees • Horizontal lines • Mating • Vertical lines • Separate generations • Roman numerals • Generation number • Numbers • Individuals within generations Mr. Drivas and Mr. Kitchen

  9. Pedigrees Dominant Mr. Drivas and Mr. Kitchen

  10. Pedigrees Recessive Mr. Drivas and Mr. Kitchen

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