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Home Q & A Board Biology-Related Homework Help Cell Biology
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davenwago davenwago
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11 years ago
Eukaryotic cells utilize a mRNA Processing phase before making protein. What is meant by this?  Why don't bacteria include mRNA processing?
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#1
11 years ago
The processing involves adding a cap to the mRNA and having a poly(A) tail added.  See these descriptions to make more sense of this process.  Can't say I've studied it myself.  http://vcell.ndsu.nodak.edu/animations/mrnaprocessing/first.htm
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#2
11 years ago
mRNA processing involves a number of processes: the addition of a 5' cap, 3' polyadenylation (adding a polyadenosine tail), and intron splicing (the removal of non-coding portions of the gene product: removal of different introns can result in a different final protein - called "alternative splicing").

All of this is done in the nucleus, prior to export of the mature mRNA. Sinc prokaryotes don't have a nucleus, they cannot separate the two processes and do not perform any mRNA processing.
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