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Q. RNA polymerase-III synthesize

NTA AbhyasNTA Abhyas 2020Molecular Basis of Inheritance

Solution:

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 transcribe rRNAs (28S, 18S, and 5.8S), whereas the RNA polymerase III is responsible for transcription of tRNA, 5srRNA, and snRNAs (small nuclear RNAs). The RNA polymerase II transcribes the precursor of mRNA, the heterogeneous nuclear RNA (hnRNA).