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Evolutionary Change and Biodiversity · Term 4

Other Mechanisms of Evolution: Genetic Drift

Students will explore genetic drift (bottleneck and founder effects) as a random process that drives evolutionary change, especially in small populations.

Key Questions

  1. Differentiate between genetic drift (bottleneck and founder effects) and natural selection in their impact on allele frequencies.
  2. Explain how random chance events can significantly alter the genetic makeup of small populations.
  3. Analyze the implications of genetic drift for conservation biology and endangered species.

ACARA Content Descriptions

ACARA Biology Unit 4
Year: Year 11
Subject: Biology
Unit: Evolutionary Change and Biodiversity
Period: Term 4

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