If a bacteria cell, that has the lac operon, is metabolizing lactose glucose is absent and allolactose has blocked the repressor. O lactose is present, glucose is present, and CAP/CAMP are in contact. O glucose may be present but the inducer has blocked the repressor. lactose is present, glucose is absent, and CAMP levels are low.

Q: A mutation in the lac operator that prevents binding of the lac repressor to the operator

A: Lac operon The lac operon is a group of genes with a single promoter. It consists of three genes…

Q: If an abnormal repressor protein could still bind allolactose but the binding of allolactose did not…

A: The Lac operon contains genes responsible for the transportation and breakdown of lactose. These…

Q: If an abnormal repressor protein could still bind allolactose but the binding of allolactose did not…

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

Q: Explain how the Lac operon functions when there are low glucose levels and high lactose levels.  Be…

A: Operon:  A functional unit of genomic DNA made up of a group of genes that are controlled by a…

Q: The only way that information is extracted out of DNA is through the transcription of MRNAS that…

A: According to our guideline we can answer only the first question. So upload the second question…

Q: Given that the the trp operon is a negative repressible operon what happens to the trp repressor in…

A: Introduction  The lac operon model is a classic example of gene regulation in prokaryotic cells. The…

Q: P₁0 ORF1 t₁ ORF2 ORF3 t₂ The diagram above illustrates an operon that is regulated by the RepR…

A: An operon is a group of genes and the regulatory elements that regulate the expression of those…

Q: he lac operon contains the genes that the bacterium needs to be able to use lactose as a carbon…

A: An Operon is a unit of structure and function that consists of the clusters of regulatory genes…

Q: Imagine this scenario: In E.coli the Operon X encodes for Proteins Y, X and Z. Proteins Y, X and Z…

A: Introduction  The lac operon is a group of genes in bacteria that are regulated as a unit and are…

Q: In immediate-early transcription of the phage genome, the N protein works as an antiterminator to…

A: Lambda phage is a bacteriophage which can enter either the lytic or lysogenic cycle. The…

Q: eron ns are only produced certain molecules are und in the cell. eron = are only read when molecules…

A: Positive genetic regulation refers to the type of regulation mechanism that enables the expression…

Q: Regulation of the E. coli trp operon by attenuation requires the trp repressor protein. prevents…

A: An operon is a function unit of DNA containing a set of genes including structural gene, a…

Q: You identify a mutant that affects lac operon expression. You decide to investigate this mutant…

A: The concept of transcriptional regulation refers to the mechanisms by which cells control the…

Q: A mutation in the repressor LacI causes it to lose the ability to bind its effector, allolactose.…

A: The question is asking about the effect of a mutation in the LacI repressor that causes it to lose…

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: If an abnormal repressor protein could still bind allolactose, but thebinding of allolactose did not…

A: Deoxyribonucleic acid is a particle made out of two polynucleotide chains that loop around one…

Q: Explain how the following conditions will affect the regulation of the operon. Low cAMP levels; E.…

A: Operon is a sequence of DNA that consists of a set of genes which are involved in a particular…

Q: Which of the below conditions would result in the lowest level of expression from the lac operon…

A: Option C is correct :

Q: In E. coli, when glucose is present, galactose is used to make a component of the bacterial cell…

A: In the absence of glucose the operon is not described or transcribed at very low levels. When…

Q: In E. coli, when glucose is present, galactose is used to make a component of the bacterial cell…

A: As statement states that the galactose used for making the component of bacterial cell wall in the…

Q: An E. coli cell acquires a mutation in the gene that encodes CAP. The mutation affects the…

A: The transcription is a process through which information in the DNA molecule is transcribed into…

Q: For the following types of transcriptional control, indicate whether the protein produced by the…

A: An inducible operon is one which is not transcribed. For transcription of the molecule, it requires…

Q: that

A: The trp operon found in E coli bacteria . It's a group of genes that encode biosynthetic enzymes.…

Q: The role of allolactose in the lac operon

A: Lac Operon:This is a classic example of a gene regulation system found in E. coli.The key…

Q: 5f. Complete the diagrams below to reflect the proteins and any relevant cofactors (e.g. -…

A:

Q: Which of the following condition(s) is optimal for expression of the lac operon? I. low glucose…

A: The lac operon is a cluster of genes in bacteria, including the genes for lactose utilization. It…

Q: nber that hexose kinase is an enzyme required for hexose metabolism, a process that takes a on sugar…

A: Operon is a regulatory unit in certain bacteria that helps in the regulation of the gene expression…

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.