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Table 1: Overview of Differences Between ProkaryoticĪnd Eukaryotic Gene Expression and Regulation In the different transcriptional "ground states" of prokaryotes and eukaryotes Prokaryotic DNA is the formation of chromatinin eukaryotes. The most important structural difference between eukaryotic and

Post-transcriptional events that regulate the translation of mRNA into proteins.Įven after a protein is made, post-translational modifications can affect itsĮukaryotes is a result of the combined effects of structural properties (howĭNA is "packaged") and the interactions of proteins called transcriptionįactors. First, transcription is controlled by limiting the amount of mRNA that Specifically, gene expression is controlled on two Regulation that results from cell-to-cell interactions within the organism that

Of course, higher eukaryotes still respond to environmental In other words, specific functions of different cell types are generated Turned on and off in specific cells generates the variety we observe in nature. Within such organisms? Quite simply, the way in which different genes are Why then, is there such great variation among and Though these cells form tissues with drastically different appearances, Proteins) are found within all of an organism's diploid, nucleated cells, even In addition, the same DNA sequences (though not the same Many eukaryotic species carry genes with the same sequences as other Prokaryotes, which is organized into multiple chromosomes with greater sequenceĬomplexity. Multicellular eukaryotes have a much larger genome than Temporal and spatial regulation of gene expression. Upstream of the gene on its promoter to initiate the process of transcription-multicellularĮukaryotes control cell differentiation through more complex and precise Prokaryotes and eukaryotes-including the fact that RNA polymerase binds While basic similarities in gene transcription exist between