Griffith's Transformation Experiment — NEET Biology
📚 Practice Concept📖 NCERT Source
Griffith was able to kill bacteria by heating them. He observed that heat-killed S strain bacteria injected into mice did not kill them. When he
🖼️Related NCERT figure: Continuation of Griffith's experiment flowchart showing heat-killed S strain injected into mice leading to mice living, and heat-killed S strain plus live R strain injected into mice leading to mice dying
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QuestionPractice Question
Arrange the following experimental observations of Frederick Griffith’s Transforming Principle in the correct chronological sequence: 1. Mice injected with R strain → mice survived. 2. Mice injected with heat-killed S strain → mice survived. 3. Mice injected with S strain → mice died of pneumonia. 4. Mice injected with heat-killed S strain + live R strain → mice died, and living S strain was recovered
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