Why must eukaryotic mRNA be processed before being translated?

For the successful translation of the pre - mRNA, the pre - mRNA needs to be modified to mature mRNA.

The pre- mRNA comprises of introns and exons both. The non-coding introns need to be removed so that only coding exons can be translated.

At the 5' end of the pre-mRNA, capping is done and at the 3', poly-A nucleotides are added so that the mRNA can be safely transported from the nucleus to the cytoplasm where the translation will occur. If this step is not done, then the mRNA will be degraded before reaching the ribosomes for translation.

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explanation:

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there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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