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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a molecular clock?
💡 Hint: Think about DNA and changes over time.
Question 2
Easy
Explain why mutation rates are important in molecular clocks.
💡 Hint: Consider how time and changes in DNA relate.
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 does the molecular clock technique rely on?
- The size of the organisms
- The number of mutations in DNA over time
- The environment of the species
💡 Hint: Think about how changes in DNA relate to biological timelines.
Question 2
True or False: Molecular clocks provide more accurate relationships than morphological characteristics alone.
- True
- False
💡 Hint: Consider why DNA might be better than just the outside appearance.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Using molecular clocks, estimate the divergence time between two hypothetical species with a 5% mutation difference in their DNA. Consider that mutations accumulate at a rate of 1 mutation per million years.
💡 Hint: Remember the basic calculation involving mutation rates.
Question 2
Critically assess the impact of environmental changes on molecular clock accuracy by providing a hypothetical example.
💡 Hint: Consider how real-world factors affect our understanding of time.
Challenge and get performance evaluation