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\[\text{-I}\] and list\[\text{-II}\] and select the answer using the codes| List\[\text{-I}\] (Scientist) | List\[\text{-II}\] (Discovery) |
| Frederick Griffith | Phenomenon of transformation |
| Gamow | A sequence of 3 nucleotide codes for a single amino acid |
| Frederick Miescher | isolated DNA for the first time |
A) 1, 2 and 3 are correct.
B) 1 and 2 are correct.
C) 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 pathogenecity of a bacterial strain, Streptococcus pneumoniae (Diptococcus) 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, in 1869, from the nucleus of the pus cells and named it nuclein, or nucleic acid because of its acidic nature.
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