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Warmup

Warmup. When you think about the words pedigree, blue-blooded royalty, bloodline, or heritage, what comes to mind?. Pedigrees. SEPTEMBER 30, 2009.

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Warmup

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  1. Warmup When you think about the words pedigree, blue-blooded royalty, bloodline, or heritage, what comes to mind?

  2. Pedigrees SEPTEMBER 30, 2009

  3. A farmer needs new chickens, and pairs a red-brown hen with a black rooster. The offspring are all brown-black. What genotype are the parents, and what can you say about the feather color trait? Test Practice • BB and Bb, dominant-recessive • Bb and Bb, co-dominant • BB and bb, dominant-recessive • Bb and Bb, dominant-recessive • BB and Bb, co-dominant • None of the above

  4. Double Punnit Square A pea plant can have genes for pod shape (P for pointy, p for round) and flower color (R for red, r for white). The flower gene shows co-dominance. Parents: PPRr, PpRr

  5. Pedigree Squares = male Circles = female Horizontal lines = siblings or married Vertical lines = offspring below, parents above

  6. Pedigree Practice

  7. Pedigree Analysis Learn what to look for in each type of pattern. Regular Genes: Dominant/Recessive vs. Codominant Sex-Linked Genes: Dominant Recessive

  8. Pedigree: Dominant

  9. Pedigree: Co-Dominant

  10. Pedigree: Sex-linked Recessive

  11. Pedigree: Which type?

  12. Pedigree: Which type?

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