Morgan's Theory of the Gene is categorized under which subject area?

• A. Pure science
• B. Literature, belleslettres
• C. Religion
• D. History, biography

Answer: (A)

The main idea being tested is how to categorize knowledge by subject area. Morgan's Theory of the Gene is a fundamental concept in biology that explains how traits are inherited through genes, based on experiments with fruit flies. That places it squarely in science, specifically genetics, which belongs to pure science because it investigates natural phenomena and underlying mechanisms rather than focusing on literary, religious, or biographical content. Even though Morgan is a historical figure, the theory itself is a biological concept, not a history or biography topic, and not a literary or religious one.