![Regulation of Gene Expression: Operons, Epigenetics, and Transcription Factors](https://i.ytimg.com/vi/J9jhg90A7Lw/sddefault.jpg)
Tags:
biology molecular biology DNA chromosome gene expression regulation of gene expression histone histone modification nucleosome operon lac operon transcription factor activator promoter repressor tryptophan phenotype genotype transcription and translation post-transcriptional modification feedback inhibition gene silencing TATA box