What must happen for E. Coli to begin transcribing the genes for lactase enzyme and thus making the lactase enzyme. The repressor protein binds to the DNA molecule, and RNA polymerase falls off. O The repressor protein binds to the promoter sequence. The repressor protein falls off the DNA molecule, and RNA polymerase binds to the promoter. O Lactose is removed from the system.

Q: IPTG (isopropylthiogalactoside) is commonly used to induce protein expression in Lac…

A: IPTG, also known as isopropyl d-1-thiogalactopyranoside, is a molecular biology tool. This substance…

Q: A mutation in E. coli makes the lac operator unable to bind the active repressor. How would this…

A: Lac operon is a set of three genes present in bacteria and the genes are responsible for…

Q: bolite activator protein

A: The lac operon can be defined as the operon or group of genes consist of a single promoter that can…

Q: Which of the following mutations could affect the process of transcription initiation in bacteria?…

A: UP elements are DNA sequences located upstream of a promoter and associated with the RNA polymerase.…

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: The TATA box is located at which region of the promoter? O Position 0 O Position -35 O Position -10…

A: A TATA box is a DNA sequence that tells how to read and decode a genetic sequence. It's a form of…

Q: If the Trp codons in thetrpL gene were mutated to encode another amino acid, what would the result…

A: A codon is a DNA or RNA sequence of three nucleotides. Codon forms a unit of genomic information…

Q: Part II. Gene Regulation with Operons 4. When bacteria find themselves in an environment rich in the…

A: The lac operon is a group of genes that encode enzymes needed by bacteria to metabolise lactose. The…

Q: Which is a structural gene? A. The gene that encodes ß-galactoside permease OB. Allolactose OC. The…

A: Operon is the gene regulatory mechanism in prokaryotes that regulates many genes that are involved…

Q: The process of transcription starts at the +1 site, which is determined by the promoter. In…

A: All description given in this question though in brief transcription is a process where RNA produce…

Q: You insert this DNA into your worms, and you can see some glow in the muscle cells, but it is not…

A: The cells that glow in the jellyfish will turn or switch on the green fluorescent protein gene that…

Q: Transcription produces O proteins from RNA. O proteins from DNA. DNA from RNA. O RNA from DNA.

A: Note- According to the guidelines, We are supposed to answer only 1st question. Please repost other…

Q: Which of the following is least related to the other items? Group of answer choices inducer…

A: 1) Inducer regulate gene expression. It activate transcription of a gene by inactivating repressor.…

Q: How does finP inhibit TraJ from activating expression of the tra genes? O It basepairs with the traJ…

A: Here both FinO and FinP play important role  TraJ, is controlled by the action of the antisense RNA,…

Q: Which of the following results in transcriptional attenuation?

A: In hereditary qualities, attenuation is a proposed mechanism of control in some bacterial operons…

Q: Which of these molecules is produced by a regulatory gene? O promoter O operator O operon O…

A: a gene that controls the creation of a protein (such as a genetic repressor) that limits the rate of…

Q: The repressor molecule, specified by the regulator gene, prevents the structural genes from…

A: Answer - Option B - DNA

Q: The trp operon is a repressible system because during _______ levels of tryptophan, the repressor is…

A: The trp operon is a group of genes in bacteria that are involved in the biosynthesis of the amino…

Q: The -10 and the -35 boxes found in bacterial gene promoters function to activate transcription at…

A: Promoter sequences are DNA sequences that define the initiation of RNA polymerase transcription of a…

Q: The RNA-induced silencing complex (RISC) I. binds to and unwinds ds siRNA/MIRNA to produce ss…

A:

Q: The TATA box in the promoter region of prokaryotic cells helps the RNA polymerase to bind directly…

A: Prokaryotic cells lack membrane-bound cell organelles. In prokaryotic cells, the transcription…

Q: 1. Predict the effect of each situation on the Lac or Trp operon. Lac operon is ON Lac operon is OFF…

A: Operon is the group of genes that are expressed under the same regulatory sequences.

Q: If the regulatory gene on DNA suffered a mutation in which produced nonfunctional proteins, which of…

A: In a operon regulatory genes codes for repressor protein.

Q: A mutation in the trp repressor gene that prevents the apo-repressor from binding the co-repressor…

A: Tryptophan operon Tryptophan operon is negatively regulated operon, it includes five gene, promotor,…

Q: You mutated the gene encoding the cyclic AMP receptor protein (CRP). In this mutant, the CRP is…

A: Operon is a gene regulatory structure that contains clusters of genes and these clusters of genes…

Q: Operons consist of O promoter and a series of genes O the central dogma O quorum sensing molecules O…

A: 26. promoter and a series of genes. 27. Repressible

Q: What is one advantage or Transcription and translation can occur simultaneously It provides an…

A: Exons are coding sections of an RNA transcript, or the DNA encoding it, that are translated into…

Q: According to the operon hypothesis, the Z and Y genes of E. coli are classified as structural genes,…

A: The Lac Operon is responsible for Lactose metabolism and transport in E.coli. This operon consists…

Q: Answer selected is incorrect

A: To determine which mutation is most likely to result in a pseudo-revertant phenotype, we need to…

Q: Vhich statement about DNA methylation is true? D It requires a histone methylase. D It involves the…

A: DNA methylation is a process in which methyl groups are attached to different bases of DNA with the…

Q: A disease is caused by having no functional protein produced from the kip gene. An individual has…

A: Mutations are alterations in the DNA sequence of an organism. Small changes, such as adding or…

Q: For the lac operon, when glucose is absent and lactose is present. CAMP-CAP is bound to the promoter…

A: The lac operon is a genetic regulatory system in bacteria that controls the expression of genes…

Q: bp 50 100 150 200 250 300 H. The image represent bacterial transcription. What is the most likely…

A: Introduction The Process Of Synthesis Of The RNA Copy Of A Gene Sequence Is Known As Transcription.…

Q: In the lac operon system, lactose is considered the ___________, and when the gene lacI is mutated…

A: The genes are the hereditary unit of an organism which are passed on from the parental generation to…

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.