Question

differentiate between prokaryotic and eukaryotic mrna

Answer 1

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Life span of the prokaryotic mRNA is very short. mRNA molecules are constantly breakdown into its ribonucleotides by enzyme ribonucleases. In E.coli the average half life of mRNA is only about two minutes. That is at one end of the mRNA may be being degraded and on the other end translation may take place simultaneously. Short life span of mRNA enables prokaryotes to synthesize different proteins or enzymes in response to changes in the external environment. 

Eukaryote mRNAs have much longer life span than bacterial mRNAs. That is eukaryotic mRNA are metabolically stable. For example mammalian reticulocytes synthesize protein even after hours or days after losing their nuclei. 

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Answer 2

PROKARYOTIC                                                                EUKARYOUTICS

marna are often polycistronic                                            marna are monocristonic

marna is translated during transcription                             marna are processedbefore                                                                                                                                                                      t                                                                  transport to cytoplsmwhere it is translated