Transformation & Genetic Material Discovery — NEET Biology

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