Question

transcription in eukaryotes​

Answer 1

Answer:

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transcription in eukaryotes_??

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Transcription in Eukaryotes: There are three types of transcripting enzymes i.e. RNA polymerise in the nucleus in addition to RNA polymerase found in the organelles. There is a clear-cut division of labour. Functions of different RNA polymerases in eukaryotes are given below:

1. RNA polymerase 1: 5.8S, 18S, 28S rRNA synthesis
2. RNA polymerase II: hnRNA (heterogeneous nuclear RNA)
3. RNA polymerase III: tRNA, SCRNA, 5S rRNA and SnRNA (small nuclear RNA) synthesis

The nascent RNA synthesised by RNA polymerase II is called hnRNA or primary transcript. It contains both unwanted base sequences (introns) alternated with useful base sequences (exans).

Answer 2

Answer:

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