October 6 lecture - October 06 2010 Mendelian Genetics I:...

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October 06 2010 Mendelian Genetics I: Monohybrid Crosses Today’s issues: I. Darwin’s dilemma II. Mendel’s solution III. Analyzing dihybrid crosses Q1. In response to living at high elevation, most people experience an increase in their red blood cell count. Which of the following statements is correct? *When a person’s blood changes, they are acclimating. *The ability for blood composition to change is an adaptation. Q2. Which of the following best characterizes evolution by natural selection? *…. Darwin’s dilemma: The problem of variation …continued selection would exhaust existing variation, meaning that evolution would stop. Explain the logic of this criticism. -Trait with high fitness go to 100% 0 heritable variation 0 evolution …favored traits would blend with disfavored traits when passed to offspring, diluting the favored traits. Explain why the blending process would affect evolution. -If genetic materials from different blend then the favored trait is lost II.Mendel’s solution Mendel was trying to understand the basic patterns of inheritance
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October 6 lecture - October 06 2010 Mendelian Genetics I:...

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