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In transcription in eukaryotes, heteroge...

In transcription in eukaryotes, heterogenous nuclear RNA (hnRNA)is transcribed by

A

RNA polymerase I

B

RNA polymerase II

C

RNA polymerase III

D

all of these.

Text Solution

Verified by Experts

The correct Answer is:
B
(b) : Eukaryotes have three RNA (28S, 18S and 5.8S) whereas RNA polymerase II is localised in the nucleoplasm and used for hnRNA, mRNA and RNA polymerase III is localised in the nucleus, possibly the nucleolar-nucleoplasm interface and transcribes for tRNA , 5S rRNA and snRNAs.
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Knowledge Check

  • Small neclear RNA is transcribed by

    A
    RNA Polymerase I
    B
    RNA Polymerase III
    C
    RNA Polymerase II
    D
    Both (1) and (3)

  • In eukaryotic transcription, heteronuclear RNA (hnRNA) is transcribed by

    A
    RNA polymerase I
    B
    RNA polymerase II
    C
    RNA polymerase III
    D
    All of these

  • Heterogeneous nuclear RNA (hn-RNA) is converted to m-RNA by :

    A
    splicing
    B
    capping
    C
    tailing
    D
    all of these

    • Similar Questions

    Explore conceptually related problems

    Transcription in eukaryotes takes place in :

    Intron transcripts in heterogenous nuclear RNA (hn-RNA) are removed and exon transcripts are joined together under the direction of protein complexes. These complexes are :

    Heterogeneous nuclear RNA is converted into mRNA by

    During transcription of RNA

    Mark the incorrect differences between eukaryotic and prokaryotic transcription. I. In eukaryotes , the genes are split having exons and introns while in prokaryotes it isn't . ii The structural gene which is to be transcribed is generally mono- cistronic in prokaryotes and poly-cistronic in eukaryotes . III . The RAN formed with the help of RNA polymerase in eukaryotes requires future processing to function as m-RNA while in prokaryotes it is directly used as m - RNA. IV. In eukaryotes, RNA polymerase binds to the promoter region while in prokaryotes it binds to the operator region .

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