Lac Operon Explained Easy || Regulation of Gene Expression

This is the video on Lac Operon Concept with NEET PG MCQs. Regulation of gene expression in prokaryotes occur by Lac Operon 00:00 - Introduction 01:52 - Regulation of gene expression in prokaryotes 02:22 - Lac Operon Definition 02:57 - Lac Operon Structure 04:49 - Lac Operon Regulation 05:29 - Lac Operon Regulation in presence of glucose and absence of lactose 06:49 - Lac Operon Regulation in presence of lactose and absence of glucose 07:58 - Lac Operon Regulation in presence of both glucose and lactose 10:28 - NEET PG MCQs Gene expression is the combined process of the transcription of a gene into mRNA and its transla­tion into protein. Genetic mutation alter the regulation or expression of gene and results in dysfunc­tional or non-functional protein synthesis Information, encoded in DNA, is transcribed into RNA and then translated into protein. It is called the gene expression. Thus, gene is expressed in terms of synthesis of protein. Regulation of gene expression in prokaryotes In prokaryotes, the genes involved in a metabolic pathway are often present in a linear fashion, called an operon. For example: Lactose operon (Lac operon for regulation of lactose metabolism) Galactose operon (Gal operon for regulation of Galactose metabolism) Lactose operon or lac operon Jacob and Monod in 1961, described operon model for the regulation of lactose metabolism by the intestinal bacterium E.coli. Definition of Lac Operon Lac operon is a coordinated unit of gene expression to make the enzymes necessary to metabolize lactose. Subscribe my channel from -    / biochemistrybasicsbydramit   For more interesting stuffs related to biochemistry visit - https://www.biochemistrybasics.com/ Follow me On Twitter -   / dr_biochemistry   On Instagram -   / biochemisrybasics   On Facebook -   / amit.v.m   #lacoperon #geneexpression #biochemistry