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Which of the following is a mechanism of microevolution? (2005)

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Question: Which of the following is a mechanism of microevolution? (2005)

Options:

  1. Natural selection
  2. Gene flow
  3. Genetic drift
  4. All of the above

Correct Answer: All of the above

Exam Year: 2005

Solution: 

All of the options listed (natural selection, gene flow, and genetic drift) are mechanisms of microevolution, which refers to small-scale evolutionary changes within a population.

Which of the following is a mechanism of microevolution? (2005)

Practice Questions

Q1
Which of the following is a mechanism of microevolution? (2005)
  1. Natural selection
  2. Gene flow
  3. Genetic drift
  4. All of the above

Questions & Step-by-Step Solutions

Which of the following is a mechanism of microevolution? (2005)
  • Step 1: Understand what microevolution means. Microevolution refers to small changes in a population's genetic makeup over time.
  • Step 2: Identify the mechanisms of microevolution. The main mechanisms are natural selection, gene flow, and genetic drift.
  • Step 3: Recognize that natural selection is the process where individuals with favorable traits are more likely to survive and reproduce.
  • Step 4: Understand gene flow, which is the movement of genes between populations, often through migration.
  • Step 5: Learn about genetic drift, which is the random change in allele frequencies in a population, especially in small populations.
  • Step 6: Conclude that all the options listed (natural selection, gene flow, and genetic drift) are indeed mechanisms of microevolution.
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