Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Study the flow chart given below and answer the questions that follow:

1. S strain into mice mice die.
2. R strain into mice → mice live.
3. Heat killed S strain + live R strain into mice → A
4. Heat killed S strain + DNase + live R strain → into mice B

1. Name the organism and differentiate between its two strains, R and S, respectively.
2. Write the results A and B obtained in steps (e) and (d), respectively.
3. Name the Scientist who performed the steps (a), (b) and (c).
4. Write the specific conclusion drawn from the step (d).