Operon Concept

Molecular Basis OF Inheritance ||Antibiotic Inhibition OF Bacterial protein synthesis || Regulation OF Gene Expression (1) In Eukaryotes ||(2) In Prokaryotes(Operon Concept) Lactose Operon || Tryptophan Operon

How many of the following statement are TRUE ? (i) 6 turns of B - DNA has 120 nucleotides. (ii) In prokaryotes , gene regulation generally occurs at transcriptional level. (iii) Operon concept was given by Jacob and Monod while working on yeast. (iv) The enzyme required for peptide chain synthesis is a ribozyme in bacteria and lies in 50S subunit. (v) A small segment of RNA synthesized during replication of DNA is ''Okazaki segment''.

Operon is

Operon is

Operon contains

All of the following are parts of an operon except

Operon is :

The lac operon consists of :

Describe the lac operon in detail.