Practice - Linkage and Recombination
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Practice Questions
Test your understanding with targeted questions
Define linkage in the context of genetics.
💡 Hint: Think about how genes might travel together during meiosis.
What is recombination?
💡 Hint: Consider what happens during crossing over in meiosis.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is linkage?
💡 Hint: Think about how genes are positioned on chromosomes.
Recombination leads to:
💡 Hint: Reflect on the role of meiosis in creating genetic diversity.
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Challenge Problems
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A researcher is analyzing a dihybrid cross of two traits in Drosophila: body color (brown = dominant over yellow) and wing shape (normal = dominant over vestigial). If the genes are linked, how would the expected phenotypic ratios differ from that of Mendelian inheritance?
💡 Hint: Think about what Mendelian ratios would be if genes were independent.
Consider a plant species with tightly linked flower color genes (red and white). If a cross yields predominantly red flowers, but a few white flowers appear, how might this indicate linkage, and what might it suggest about the distance between these genes?
💡 Hint: Evaluate how linkage distances impact gene expression patterns.
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