Nimetu
vahel?
Prokarüootides transkribeeritakse üks polütsistoorne mRNA, mis hiljem
transleeritakse mitmeks eri valguks.
Eukrüootides transkribeeritakse monotsistroonne mRNA, millest hiljem
sünteesi-takse 1 valk.
11. Võrdle prokarüootsete ja eukarüootsete RNA polümeraaside
struktuuri ja funktsiooni.
Eukaryotes have several types of RNAP, characterized by the type of RNA they
synthesize:
· RNA polymerase I synthesizes a pre-rRNA 45S, which matures into 28S,
18S and 5.8S rRNAs which will form the major RNA sections of the
ribosome.
· RNA polymerase II synthesizes precursors of mRNAs and most snRNA
and microRNAs. This is the most studied type, and due to the high level of
control required over transcription a range of transcription factors are
required for its binding to promoters.
· RNA polymerase III synthesizes tRNAs, rRNA 5S and other small RNAs
annaabi.ee 
