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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is gene interaction?
💡 Hint: Think about how different genes can combine effects.
Question 2
Easy
Define epistasis.
💡 Hint: Remember the example of different coat colors in dogs.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the phenomenon called when one gene masks the effect of another?
- Epistasis
- Genotype
- Phenotype
💡 Hint: Remember the Labrador retriever example.
Question 2
True or False: Epistasis only occurs between two alleles of the same gene.
- True
- False
💡 Hint: Think about how multiple genes can influence a single trait.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the following gene interaction example, explain how the expected phenotypic ratio is modified: You observe a dihybrid cross for two traits. Trait A is controlled by gene A (dominant 'A', recessive 'a') and trait B is controlled by gene B (dominant 'B', recessive 'b'). The epistatic gene modifies the expression of gene B's alleles, how do the expected ratios change?
💡 Hint: Consider how gene A's phenotype affects the visibility of gene B’s phenotypes.
Question 2
You are studying two mutations in plants causing red and yellow flowers. Determine whether the mutations are in the same gene or different genes if they are crossed and all offspring are red. Explain your reasoning.
💡 Hint: Reflect on allele dominance and interaction in expressing traits.
Challenge and get performance evaluation