The Lac Operon is induced by both the presence of and the absence of in the environment.

Q: In the trp operon, tryptophan itself serves as the effector for the trp repressor which causes it to…

A: trp operon is also known as Tryptophan operon An operon are gene clusters coding structural proteins…

Q: Describe the regulation of the lac operon when lactose is present and glucose is absent

A: In 1961, F. Jacob and J. Monod proposed the operon model to explain the genetic basis of enzyme…

Q: components of an operon into the appropriate order

A: components of an operon into the appropriate order:…

Q: Which of the following molecules is an inducer of the lac operon:a. Galactose d. Isothiocyanateb.…

A: The structural genes lac z, lac y, and lac in the lac operon code for beta-galactosidase (converts…

Q: The lac operon is an example of ________ control in which the presence of an ________ is required…

A: lac operon is present in E.coli and it produce the enzymes which are required for the lactose…

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: the trp operon is an example of… ? enzyme repression enzyme induction  catabolite repression

A: A primary difference between repressible and inducible systems is the result that occurs when the…

Q: describe the actions of the normal and mutated lac operon in absence of lactose

A: The Lac operon is a group of genes with a  single promoter. It takes place in prokaryotes(bacteria).…

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 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: 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: Which of the following elements of the lac operon and its associated regulatory factors function in…

A: One of many types of functional regulatory elements are cis-regulatory modules. Regulatory elements…

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: Explain how glucose represses the lac operon.

A: Operons can be defined as the regions of DNA that contain the clusters of related genes. They are…

Q: In the presence of lactose and the presence of glucose the lac operon is not expressed Lacl is bound…

A: Introduction:- Lactose metabolism genes are found in the lac operon of E. coli. It is only expressed…

Q: Differentiate between positive and negative control, and show how both types of control operate in…

A: Controls are always part of the scientific experiments. They help researchers to conduct…

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: IS binding to the repressor, rendering it inactive and turning the operon on. Lactose is binding to…

A: The lac operon is an operon, or group of genes with a single promoter.The genes in the operon encode…

Q: Compare and contrast the functional mechanism of the Inducible - Lac operon  with the Repressible -…

A: Gene expression is a process in which the genetic instructions of genes are utilized to manage…

Q: In prokaryotes, the trp operon is under ________ that ________ prevents RNA polymerase from binding.…

A: Amino acids are required for bacteria like E. coli to sustain. E. coli can ingest tryptophan, which…

Q: Define operon.

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

Q: The lac operon is controlled by two main proteins. These proteins a. both act in a negative…

A: The lac (lactose) operon functions during the transcription and translation of genes required for…

Q: The Lac operon is a common example of prokaryotic control of gene expression. In what condition is…

A: Lac operon consists of structural genes such as lacZ, lacY, and lacA which are responsible for the…

Q: Please discuss positive regulation with respect to lac operon.

A: An expression of a gene is evidenced by the synthesis of the polypeptide chain encoded by the…

Q: When lactose is first introduced into the medium, the lac operon is not induced and thus permease…

A: The lac operon in E.coli consists of 3 genes (lac Z, lac Y, lac A). The lac Z encodes beta…

Q: In order for the lac operon to be triggered, lactose must be present and ________.   a. cAMP levels…

A:

Q: If there was a mutation such that the lac I protein could no longer bind lactose, but could still…

A: Lac operon is responsible for the metabolism of lactose in bacteria.

Q: If glucose is absent, but lactose is available, the lac operon will be _____

A: “Operons” are systems of “gene regulation” of various bacteria and viruses. They control the…

Q: Sequence lac operon regulation

A: The basic concept of how the gene regulation carried out at transcriptional level in bacteria was…

Q: A mutation prevents the catabolite activator protein (CAP) from binding to the promoter in the lac…

A: Mutation means sudden changes occur in DNA sequences. The mutation occurs randomly. It also occurs…

Q: The lac operon is. Negative inducible Positive repressible Positive inducible Both negative…

A: Question - The lac operon is. A)- Negative inducible B)- positive repressible C)- Positive inducible…

Q: The lac operon consists of the control elements and _____________ that code for the enzymes of…

A: The regulatory mechanism of operon responsible for the utilization of lactose as a carbon source is…

Q: If tryptophan is presence in the culture media of E.coli then _________.  the promoter will be…

A: This question is based on tryptophan operon. The trp operon is an operon-a group of genes that is…

Q: In the lac operon, regulation of gene expression by CAP-CAMP is a type of O a. positive repressible…

A: Lac operon can be defined as the set of  constitutive genes with a single promoter that encodes for…

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: In the lac and trp operons, the repressors are said to be "allosteric molecules" because they…

A: Operator sequences are the sequences involved in the regulation of transcription, and activators or…

Q: Which of the following diagrams best models the regulation of the trp operon when tryptophan is…

A: An operon is a polycistronic gene regulated by a common promoter and regulatory sequences. Operons…

Q: Lac operon explain in easy words

A: An operon is a genetic regulatory system that clusters genes coding for functionally related…

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: High levels of glucose in the environment result in low levels of transcription of the lac operon.…

A: The lactose operon (lac operon) is an operon needed for the transport and digestion of lactose in…

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: A transcription repressor results in a decrease in transcription of an operon. This is an example of…

A: The lac Operon is associated with Lactose metabolism. It comprises of the three structural genes -…

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

A: Lac operon is a gene expression regulatory system that is responsible for the transport and…

Q: In regulations demonstrated by initiation of transcription, if lactose is abundant, lactose in this…

A: The promoter is a region on the lac operon which is bounded by RNA polymerase to initiates the…

Q: Distinguish between positive and negative control. Give examples of each from the lac operon

A: Operator is a unit consisting of one or more cistrons that function coordinately under the control…

Q: True or false:  When glucose and lactose are present, the lac operon will be highly expressed

A: The lac operon is a region of the DNA where the genes responsible for the utilization of lactose as…

Q: Activation, transcription, and translation of the lac operon willrelease which exact nutrients?

A: An operon is a group of functionally-associated genes that are controlled by a shared operator.…

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.