1. Monohybrid cross (peas) |
· Traits vs alleles |
· Dominant vs recessive |
· Phenotype vs genotype |
· Gamete types, zygotes, hybrids |
· Punnett square |
· Phenotypic ratios vs genotypic ratios |
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2. Monohybrid cross (lilies) |
· Data to ratios |
· Predict phenotypic ratios |
· Testcross |
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3. Dihybrid cross (peas) |
· Ratios to Genotypes |
· Punnett Square |
· Genotypic ratios |
· Phenotypic ratios |
· Testcross |
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4. Dihybrid cross (aliens) |
· Parental phenotypes, F1 ratios; determine parental genotypes |
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5. Monohybrid cross (flies) |
· Drosophila nomenclature |
· Parental phenotypes, F1 ratios; determine parental genotypes |
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6. Monohybrid,Dihybrid and Trihybrid crosses (hypothetical cows) |
· Parental phenotypes, F1 ratios; |
· Determine parental genotypes |
· Combinatorial probabilities |
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Problems |
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1. Pedigrees |
· Pedigree I (dom), II (rare rec), III (common rec.) |
· Dominant or recessive |
· Assign genotypes |
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2. Probabilities (Dice) |
· Probability (e.g. 1/6) |
· Sum rule |
· Product rule |
· Combination of sum and product rule |
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3. Probabilities (M&Ms) |
· Sum rule |
· Product rule |
· Combination of sum and product rule |
· "at least one…" |
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4. Probabilities and Pedigrees (PTC) |
· Probability offspring dominant trait or recessive trait |
· Combination of inheriting trait for particular sex |
· Probability of multiple children unaffected |
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5. Probabilities and Pedigrees (rare rec. trait) |
· Probability affected offspring |
· Dizygotic twins vs monozygotic twins |
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6. Probabilities and Pedigrees (PKU) |
· Probability affected offspring |
· Probability two out of next five children affected |
· Probability of no more than one affected child out of five |
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7. Ascertainment Bias (albinism) |
· Real data vs predicted ratios |