At which of the following levels the predominant regulation of gene expression of both prokaryotes and eukaryotes take place?
DNA replication
Transcription
Translation
Post-translational
Expression of a functional gene product from genes is the gene expression. The functional product is not always proteins. Non-protein coding genes are also expressed as functional RNAs (tRNA, snRNA, miRNA etc.) Regulation of gene expression occurs at transcriptional level in both prokaryotes and eukaryotes.
Transcription