Inside the reviewer
2026 Edition · Updated November 2026
Review cell biology, genetics, evolution, plant and animal biology and ecology. There is no PRC board exam for biology, so this is a general review.
Includes 120 original exam-style questions and an answer key with explanations.
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- Cell biology and biochemistry
- Genetics and molecular biology
- Evolution, biodiversity, plant and animal biology
- Ecology
Sample question
In a eukaryotic cell, most ATP made by oxidative phosphorylation is produced in which organelle?
Show answer and explanation
Oxidative phosphorylation runs on the electron transport chain and ATP synthase in the inner mitochondrial membrane.
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