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Q. No.Which of the following will directly support the conclusion derived by Oswald Avery, Colin MacLeod and Maclyn McCarty that DNA caused the bacterial transformation in Griffith’s experiment?
| I: | Protein-digesting enzymes (proteases) and RNA-digesting enzymes (RNases) did not affect transformation |
| II: | Digestion with DNase inhibited transformation. |
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Â Search for Genetic Material |
Level 4: Below 35%
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In the Meselson-Stahl experiment on DNA replication, after one round of replication in 14N medium following growth in 15N medium, what is the ratio of DNA with intermediate density to DNA with light density?
1. 2:0
2. 1:1
3. 3:1
4. 1:3
1. 2:0
2. 1:1
3. 3:1
4. 1:3
Subtopic: Â Search for Genetic Material |
 54%
Level 3: 35%-60%
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Q. No.
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