WebExpert Answer. ** please give a like if you love the answer** Answer :- Lower two empty boxes are as follows:- left - repressor right - lac operon promoter upper empty box - lacl promoter Structure of Lac operon :- It contains three structural genes lacZ, lacY and …. View the full answer. WebApr 9, 2024 · Basic lac Operon structure E. coli encounters many different sugars in its environment. These sugars, such as lactose and glucose, require different enzymes for their metabolism. Three of the enzymes for lactose metabolism are grouped in the lac operon: lacZ, lacY, and lacA (Figure 12.1. 1 ).
Lac Operon - Concept, Diagram, Notes, Gene Regulation
WebDraw the lac-operon and its genes. Label the following structures: operator, regulator, structural genes, and promoter. Briefly describe the function (s) of each structure (6 marks) 3. Draw an operon as it appears when it is "turned on”. Label all structures not labeled in question 2. (3 marks) 4. Draw an operon as it appears when it is turned off. WebMay 27, 2024 · The operon consists of lacZ, lacY, and lacA genes, which are all structural genes. By definition, structural genes encode proteins that participate in cell structure and metabolic function. As already noted, the lac operon is transcribed into an mRNA encoding the Z, Y, and A proteins. Let’s zoom in on a single lac operon in Figure 12.2. flying fish 6 pack
15: Positive and negative control of gene expression
WebAn operon primarily consists of two elements or genes: Regulatory Elements It includes the following regions: Promotor Region: It codes the Lac-P gene. It lies between the regulator and the operator. RNA … WebA unit of genetic material that functions in a coordinated manner by means of a regulator, an operator, a promoter, and one or more structural genes that are transcribed together is called an operon. The clusters of genes with related functions are called operons. Components of operon: 1. Regulator gene: i. WebMar 29, 2024 · Functions include:-. The lac operon repressor is encoded by the ‘I’ gene. The ‘z’ gene codes for beta-galactosidase (-gal), a hydrolase enzyme that breaks down the disaccharide lactose into its monomeric groups, galactose, and glucose. The ‘y’ gene produces permease, which increases the cell's permeability to p-galactosidase. greenligh value investing congress