Describe the difference between a repressible and an inducible operon.

Q: Draw a picture illustrating the general structure of an operon and identify its parts.

A: BASIC INFORMATION  OPERON  The operon model was given by Francois Jacob and Jacques Monod. This…

Q: Explain how the lac operon is both positively and negativelycontrolled.

A: The lac operon of E. coli contains genes involved in lactose metabolism. It is expressed only when…

Q: Define an operon.give an example,exaplain an inducible operon?

A: Gene regulation is the mechanism which acts to either induce or repress the gene expression. It…

Q: Explain how the lac operon works.

A: “Lac operon is an operon or a group of genes with one promoter that code genes for the transport and…

Q: Describe the main features of repressible operons.

A: An operon is defined as a particular set of genes present on a DNA that operates under same…

Q: In the lac operon, the product of structural gene lacY is capable of

A: Lac operon It contains a operator, a promoter, repressor, and structural gene. The structural gene…

Q: Compare and contrast the roles of a corepressor and an inducer innegative regulation of an operon.

A: Gene regulation is the process through which the cells control the expression of genes. It controls…

Q: Explain how the lac operon exerts positive regulation.

A: operons are gene regulatory elements found in prokaryotes . these are set of genes which are…

Q: What turns the operon on when lactose is present?

A: An operon is defined as a functioning unit of DNA that contains a cluster or group of genes under…

Q: Compare and contrast the lac operon and trp operon of E. coli.

A: E.coli is a type of bacteria that is mostly found in the human intestine and gut of some animals. It…

Q: Describe the structure of an operon and state the role ofeach component of the operon.

A: Operon acts as a single regulated unit having one or more structural genes, promoter genes, a…

Q: Use the lac operon to describe the process of controlling transcription through operons  (structural…

A: Operons are polycistronic gene clusters that can be regulated by a promoter. It consists of a…

Q: Compare and contrast the lac operon and repressible operon systems.

A: Expression of each and every gene is not always required in an organism. Gene expression must occur…

Q: Describe what happens to the trp operon as the cell uses up its store of tryptophan.

A: The cells have amino acids in various forms such as precursors or native form. Amino acids are an…

Q: How does the Trp operon work? A. Binding of Trp to a repressor protein allows the repressor to bind…

A: Trp operon is the cluster of genes that are responsible for synthesis pf operon

Q: Explain how the Lac operon works to regulate the expression of genes in bacteria. Explain the operon…

A: Bacteria has chromosome and some extra chromosomal plasmids.

Q: Explain how repressor proteins can be central to theregulation of both catabolic and anabolic…

A: Repressor proteins are those that respond to external stimuli to prevent the binding of…

Q: Define operon and explain the functions of the operator and promoter regions.

A: To save resources as well as energy, an organism controls its gene expression process. An organism…

Q: In the lac operon, how would gene expression be affected if each one of the following segments was…

A: The lac operon is basically a group of genes with a single promoter whose genes encode proteins that…

Q: Define the term operon and explain one advantage it provides to a bacterial cell

A: The cells are the primary unit of life. Based on the number of cells an organism may be prokaryotic…

Q: Define operon.

A: Step 1 Gene regulation is the phenomenon of switching off as well as switching on of the genes…

Q: Describe how the trp operon is under negative control

A: Introduction  Gene Regulation: Expression of gene is highly regulated in both prokaryotes as well as…

Q: Describe about operon.

A: The prokaryotes are the unicellular organism that does not contain true nucleus and membrane bound…

Q: Why is the TRP operon considered a repressible operon, while the LAC operon is considered an…

A: Operons are areas of DNA which are composed of cluster of related genes which are controlled by…

Q: Distinguish between a repressible operon and aninducible operon.

A: The Operon is the regulatory system present in DNA in cluster form, which contains structural genes…

Q: Study the illustration of the lac operon below. Normally, the genes are switched off when lactose is…

A: 1. When lactose is unavailable, the lac repressor binds strongly to the operator, inhibiting RNA…

Q: Differentiate inducsible and repressible operon

A: The promoter and operator control the group of genes which are called operons. Some operons are…

Q: Do you expect operons to occur extensively in Eukaryotes? Yes or no and explain.

A: Operons (clusters of co-regulated genes with related functions) are a well-known feature of…

Q: If an operon is controlled by an activator and the substrate of the metabolic pathway then the type…

A: An operon can be defined as that functional unit of DNA containing many genes, all of which are…

Q: Explain the The Operon Model: Negative Control ?

A: The lac operon of E. coli contains genes involved in lactose metabolism. It is expressed only when…

Q: Give the Genetic Proof of the Operon Model ?

A: An operon represents a genetic unit with one or more structural genes and an operator sequence and…

Q: Explain the structure of Lac operon in bacteria.

A: Lactose is a beta-galactoside that E.coli use for energy and as a carbon source after it is broken…

Q: What are the example of operon?

A: Operon is a group of genes which controls the synthesis process of protein molecules depending on…

Q: Distinguish between an operon and a regulon.

A: The process of activation and deactivation of the genes as per their requirement by the cells is…

Q: when tryptophan is present, what would happen to trp operon regulation

A: Introduction:- The trp operon is a collection of genes identified in E. coli bacteria that code for…

Q: For an enzyme to be produced from an inducible operon, the repressor must bind to and digest the…

A: The operon is defined as a set of genes transcribed together and is regulated by one promoter. The…

Q: Differentiate between inducible and repressible opero

A: An operon is a group of genes that are expressed under the same promoter.

Q: In how many different ways is the regulation of the Trp operon?

A: An Operon is a region in a DNA that is required for the regulation of gene expression in…

Q: Define lac operon and its structural gene with their function.

A:

Q: DEFINE what is an Operon, and compare and contrast regulation of the LAC Operon and the TRP Operon.…

A: As per our honor code, we are allowed to answer one question at a moment. You have posted multiple…

Q: Describe the advantages and disadvantages for organisms that arrange genes in operons.

A: Operons are regions of DNA that contain clusters of related genes and are made up of promoter…

Q: Explain how activators and repressors regulate operons in prokaryotes.

A: In prokaryotic cells, there are three types of regulatory molecules that can affect the expression…

Q: explain how the Lac operon gets turned on and off .

A: Introduction :- Three structural genes, as well as a promoter, a terminator, a regulator, and an…

Q: Positive repressible means the regulatory protein is a(n) ______, and the operon is ______ when the…

A: In the case of the positive repressible operon, the activator protein is found to be bound and…

Q: If a particular operon encodes enzymes for making an essential amino acid is regulated like the trp…

A: The operon has five structural genes that code for the three enzymes required to convert chorismic…

Q: Explain the process of attenuation in the trp operon under the following conditi (i) No tryptophan…

A: Answer

Q: Explain how alternate sigma factors can be used to initiate transcription of distinct sets of…

A: Answer: Introduction: Sigma factors is a bacterial transcription factors which can attach core RNA…

Q: What is the difference between the role of the operator and the role of the promoter in an operon

A: According to Jacob and monod concept, operon is a group of contiguous structural genes showing…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.