CUET Preparation Today
Match column 1 with column 2 .
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A-ii, B -iii, C-i, D-iv A-iv, B -iii, C-ii, D-i A-i, B -ii, C-iii, D-iv A-i, B -iii, C-ii, D-iv |
A-ii, B -iii, C-i, D-iv |
The correct answer is Option (1) –A-ii, B -iii, C-i, D-iv
A. In 1928, Frederick Griffith, in a series of experiments with Streptococcus pneumoniae (bacterium responsible for pneumonia), witnessed a miraculous transformation in the bacteria. B. Tha Matthew Meselson and Franklin Stahl experiment was to prove that DNA replicates semiconservative.It was shown first in Escherichia coli and subsequently in higher organisms, such as plants and human cell. C. In eukaryotes, there are at least three RNA polymerases in the nucleus (in addition to the RNA polymerase found in the organelles). There is a clear cut division of labour. The RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S). D. The RNA polymerase II transcribes precursor of mRNA, the heterogeneous nuclear RNA (hnRNA). RNA polymerase III is responsible for transcription of tRNA, 5srRNA, and snRNAs (small nuclear RNAs).
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