Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Match list-I and list-II and select the answer using the code :| S.No. | List-\[\text{I}\] | List-\[\text{II}\] |
| (Scientist) | (Discovery) | |
| 1. | Frederick Griffith | Phenomenon of transformation |
| 2. | Gamow | A sequence of 3 nucleotide codes for a single amino acid |
| 3. | Frederick Miescher | Isolated DNA for the fist time |
A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 1,2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: A
Solution :
In 1928, Frederick Griffith, a British scientist working on the pathogenicity of a bacterial strain, Streptococcus pneumonias (Diplococcus) discovered the process of transformation Gamow gave a sequence of 3 nucleotide codes for a single amino acid. Frederick Meischer was the first to isolate DNA, inl869, from the nucleus of the pus cell) and named it nucleic, or nucleic acid because of its acidic nature.
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