5d. Remembering that hexose metabolism is a highly conserved process among all branches of life, how many genes do you expect to find in this operon? Explain your logic.

Q: What is the default state of the lac operon? a. LacI repressor is sitting on the operator sequence…

A: Lacl repressor is sitting on a operator sequence and blocks RNAP from transcribing lacZYA

Q: 2. The following figure represents the primary transcript of a typical eukaryotic protein-coding…

A: Eukaryotic protein-coding genes are segments of DNA in eukaryotic organisms that contain…

Q: 6. A portion of a gene is shown below. 5'-ATGATTCGCCTCGGGGCTCCCCAGTCGCTGGTGCTGCTGACGCTGCTCGTCG-3'…

A: mRNA, or messenger RNA, is a type of RNA molecule that plays a central role in the process of…

Q: 5g. A mutation has occurred rendering the regulatory protein unable to recognize the operator…

A: Operons are groups of genes involved in regulating a process and are transcribed as a single mRNA.…

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: 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: 6. By incubating cells with an inhibitor of TFIIH helicase activity. Which step in the transcript…

A: Answer - The initiation & the starting of the elongation process will be stopped if the cell is…

Q: 12. You want to determine the location of the promoter and operator for an operon. To do so, you…

A: 1) If operator is removed, expression becomes constitutive 2) If promoter is removed, there should…

Q: Jacques Monod, one of the geneticists who won the Nobel Prize in medicine for deciphering the…

A: The synthesis of RNA from DNA is called transcription and synthesis of protein with the help of RNA…

Q: . How many codons are there above in question 8? Label one of them in green.

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: 1. why does the genome contain so many more genes for rRNA than mRNA? 2. why is it effective for a…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: a. The original constitutive operator mutations in thelac operon were all base changes in o1. Why…

A: The original constitutive operator mutations made in the lac operon involved base changes in the O1.…

Q: coli WT (wild type, everything is functional) and II) E. coli whose lacl ger ed, when each of the 2…

A: the lacI gene is a regulatory gene for lac operon It produces a protein that blocks RNA polymerase…

Q: . The human gene for ß2 lens crystallin has the components listed below. The numbers represent…

A: Since we only answer up to 3 sub-parts, we’ll answer the first three. Please resubmit the question…

Q: . In bacterial genes, as soon as any partial mRNA transcriptis produced by the RNA polymerase…

A: Messenger RNA (mRNA) molecules carry the coding sequences for macromolecule synthesis.

Q: 5. There are four genes in the FAK operon. a. How many mRNAs are encoded by this operon? b. The FAK…

A: Question 5 Answer a) There is only one mRNA that codes for four genes in the FAK operon.…

Q: 28. a. Can a tRNA exist that has the anticodon sequence 5' IAA? If so, which amino acid would it…

A: Transfer RNA (tRNA) molecules contain a sequence of three nucleotides known as the anticodon. It is…

Q: 1. The B-galactosidase gene of the lac operon is expressed at high level when which combination of…

A: High lactose concentration induces the production of the B-galactosidase enzyme. Lactose acts as an…

Q: 1. A. A mutation in E. coli is found that fails to induce the arabinose operon. Upon further…

A: A mutation is a change to the DNA sequence of a cell. This change can be due to rearrangements on…

Q: If the lac operon is "on" and transcribed, what is produced by RNA polymerase? O a. RNA polymerase…

A: The lac operon is a group of genes that work together to regulate the metabolism of lactose in…

Q: 3. Draw an anabolic operon with three biosynthetic genes for compound Q and a catabolic operon with…

A:

Q: Metabolic control is crucial part of survival for all bacteria. The lactose operon is located on the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 5. Use the table below to describe under what conditions the lac operator is turned on and off. Is…

A: The lac operon is a single-promoter operon that is necessary for the transport and metabolism of…

Q: What statement is NOT true regarding transcription attenuation of amino acid biosynthetic operons?…

A: Amino acid biosynthesis is an anabolic process in which a molecule is synthesized as an end product.…

Q: . Genes A, B, and C encode enzymes A, B, and C, which are part of this biosynthetic pathway:…

A: If the gene A,B,C are presemt in the eukaryotes and bacteria and since 1 is prokaryotic and another…

Q: 2. (A) Describe the role that PI plays in transcriptional regulation of the ginALG operon and in the…

A: A.glnALG operon along with the glnD and glnF and their gene products plays an extremely important…

Q: You now add tryptophan to the cell. What would happen to the bacterial cell and its trp operon?

A: Gene regulation is the process in which the DNA which contains information is transcribed into the…

Q: Why are some eukaryotic proteins not able to be expressed in bacteria?   MARK ALL THAT APPLY. Group…

A: In bacterial cells, molecular chaperones aid in the folding of newly generated proteins both during…

Q: 5. As you know, the lac promoter is a poor intrinsic promoter: it is transcribed efficiently only…

A: Q 5.) Ans.The given question explores the lac operon's regulation in E. coli through mutagenesis and…

Q: A scientist has discovered a strain of bacteria that can convert ethanol to pyruvate when stimulated…

A: Solution 1) The repressor of this operon is functional It is active when ethanol is absent and…

Q: Select all the correct types of RNA that are both the product of transcription and are also…

A: RNA plays a very important role in biological processes and also acts as Genetic material in some…

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: Question 3  3.  What will happen when a deletion mutation occurs in the promoter of the tryptophan…

A: Tryptophan operon The tryptophan operon or trp operon is an operon which is a group of genes that…

Q: 3. You find a new site next to your favorite gene through a consensus sequence search. This site has…

A: The two possibilities for what this site may be important for; one in which the function is on the…

Q: Which of the following statements about operons are true? (Check all that apply) Operons are common…

A: Ans: An operon is a cluster of the genes found in bacteria and viruses, these genes transcribed to…

Q: Suppose you have an E. coli in which the gene that codes for the lac repressor protein has been…

A: Lac operon is an inducible type of operon that involves the breakdown of lactose in E.coli.  The lac…

Q: The table below shows partial diploid E. coli with lac operon mutations  For each mutant, indicate…

A: The lac operon is an operon or group of genes with a single promoter.

Q: (l) Describe how an operon regulates the expression of genes. (m) Feedback plays an important part…

A: Homeostasis is a term that describes the ability of a cell or body to maintain optimum or relatively…

Q: Like the lac operon, the hexose operon is controlled by a separate regulatory protein under the…

A: Hexose operon is the segment of DNA which includes regulatory gene, structural gene, promoter and…

Q: 32. Operons are the basic units by which transcriptional regulation occurs in prokaryotes. Using…

A: Genes coding for functionally related proteins are concentrated throughout the DNA of bacteria and…

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.