It is now known that much of the rna that is transcribed is not translated into protein. these rnas are called noncoding rnas. read carefully to discern a crucial role played by these rnas. what is this role?

regulating gene expression

Explanation:

A non-coding RNA is one that cannot participate in the protein formation process, because it does not code for any of them. Although it appears to have no function, non-coding RNA plays an important role in regulating gene expression, which is how the cell controls the expression of genes, preventing them from being expressed when they are not needed. In this way the cell saves energy and inhibits the accumulation of unnecessary molecules.

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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explanation: