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Study Guide- Extensions of Mendel

Study Guide- Extensions of Mendel - Study Guide 5...

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Study Guide 5 Extensions of Mendel's Principles After these lectures, you should be able to: Answer the following questions from your textbook: o Chapter 3 22 (incomplete dominance) o Chapter 5 1, 2, 3, 5, 13, 15, 19, 20, 22, 26, 29, 31, 35 Compare and contrast complete dominance, incomplete dominance and co- dominance and give examples of each Explain the difference between epistasis and dominance (think genes vs alleles) Explain what a dominance series is and how this can impact on phenotypic ratios -predict phenotypes and genotypes in a cross of organisms with a trait that has more that two alleles Explain epistasis and what it means to say that “one gene is epistatic to another.” Explain how recessive epistasis and dominant epistasis affect the expected 9:3:3:1 phenotypic ratios for a dihybrid cross Describe how the emergence of novel phenotypes indicates gene interactions Describe how environmental conditions can influence the phenotypic expression of a character
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