2. What does an operon typically consist of? a. an operator, a promoter, and a cluster of genes b. a cluster of genes c. a promoter and a cluster of genes d. an operator and a cluster of genes e. a promoter and an operator

Q: Predict the level of genetic activity of the lac operon as well as the status of the lac repressor…

A: There are two regulatory factors present in the lac operon of E.coli  These are the repressor…

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: A terminator loop is… Group of answer choices a. A tertiary structure in DNA that causes DNA…

A: Introduction :- There are three main steps , that are present in any molecular events , like - in…

Q: Which of the following regions of the DNA is NOT transcribed by RNA polymerase? 1. -10/-35 promoter…

A: RNA polymerase is an enzyme that helps in the synthesis of RNA from the DNA template. This enzyme…

Q: 8. Which reporter construct design would be best for moni IGFP green when, and how much a…

A: The promoter is the upstream region of the gene which enables the identification of the gene to be…

Q: Which of the following is true of operons?a. They consist of a coordinated set of genes, all of…

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

Q: 4. Apolipoprotein B is a protein that binds lipids and carries them around the body. One of the two…

A: The rate of translation varies amongst prokaryotes and eukaryotes. In prokaryotic cells, this rate…

Q: 8. Professor X at the University of Hong Kong recently identified a new gene "LivX" which is only…

A: The gene is the sequence of nucleotides that code for a specific protein in a cell. The expression…

Q: Utilizing lactose operon, how can we explain how induction controls enzyme synthesis 2. Use…

A: An operon is a group of genes that code for proteins that are involved in a single cellular…

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: 1. in a TATAT sequence, would the number of sequences similar to a promoter increase or decrease if…

A: In this question, we discuss the possibility of variation affecting the number of sequences similar…

Q: 1. In E.coli transcription of the Lac Operon is known to be under Global control. For this operon…

A: The lac operon, found in E. coli, comprises genes responsible for lactose transport and metabolism1.…

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: How does induction control enzyme synthesis using lactose operon?  2. Describe how level of a key…

A: By controlling the transcription of the mRNA which is needed for the enzyme synthesis, the genetic…

Q: 1. Explain why catabolite repression is used in regulating the lac operon and describe how it…

A: Repression by glucose of beta-galactosidase synthesis is spontaneously reversible in all strains of…

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: Which of the following statements correctly describes promoters in E. coli a.A promoter may be…

A: A promoter is a short region of DNA upstream of the start site of a gene at which the RNA Polymerase…

Q: 1. Lac and Trp Operon are two different processes of sugar and amino acid. Describe the differences…

A: Lac and Trp operon are found in E. coli and other bacteria.

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: 83) The RDRP of the rotavirus a. Only produced in the first round of translation b. It is…

A: RdRP- is RNA dependent RNA polymerase. All retroviruses have RNA dependent RNA polymerases.

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

A:

Q: Components necessary for regulating the /trp/ operon do NOT include

A: Answer - Option E - CAP protein

Q: 4. Predict the level of genetic activity of the lac operon as well as the status of the lac…

A: In lac operon, structural genes responsible for lactose metabolism are all under the control of a…

Q: I. In the lac operon, repression occurs when there is no lactose present. II. In the absence of…

A: When lactose absent and glucose is present no transcription of lac operon happens. Becaise lac…

Q: 1. Write a short note on transcription. What is TFBS? What is the role of RNA polymerase?

A: Since you have asked multiple questions with multiple subparts, we will solve the first question for…

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: I. CAP-CAMP complex binds to the operator locus blocking the RNA polymerase. II. In the presence of…

A: The lactose operon (also known as the lac operon) is a set of genes that are specific for uptake and…

Q: a. CRISPR-Cas9 is a valuable biotechnology tool. Explain how this system uses RNA and the result of…

A: CRISPR-Cas9  is known as unique biotechnology tool which allows medical researchers and geneticists…

Q: 17. Which of the following can turn a repressible operon on? A. An increase in concentration of the…

A: An operon is a functioning unit of genomic DNA in prokaryotes that consists of a cluster of genes…

Q: . heterochromatic regions decondense for gene expression a. pre-transcriptional control b.…

A: Heterochromatin regions are condensed regions of the chromatin that are transcriptionally switched…

Q: which of the following is true regarding UP elements? A. Occur between -40 and -60 of an E. coli…

A: RNA polymerase is an enzyme which runs in 5' to 3' direction. It synthesize RNA by utilising the…

Q: Part of a gene is written below, and transcription begins at the boxed T/A base pair and proceeds…

A: Gene is present on a chromosome and contains hereditary information. These genes are later…

Q: In a bacterial operon, the active repressor bind to the   A. promoter.   B. terminator.   C.…

A: The operon concept can be defined as a DNA containing a set of genes that are transcribed basically…

Q: The lac operon controls lactose metabolism in bacteria. Predict the phenotype of a LacP mutation. •…

A: Gene regulation is defined as any type of changes occur in the genes resulting in various…

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: A drug inhibits positive regulation of an operon. What is the most likely outcome? a. No mRNA…

A:

Q: Which of the following regions of the DNA is transcribed by RNA polymerase AND is “understood” by…

A: Transcription  Transcription is the process where DNA is transcribed into RNA with the help of…

Q: I. Answer the following: 1. What are the main elements of the lac operon and their functions? 2.…

A: Definition:- An operon is a group of genes that are transcribed at the same time.  These are a…

Q: Which of the following conditions will result to deactivation of a gene? a. histone methylation b.…

A: In this question we have to describe about regulation of genes . See full answer in step 2.

Q: 26. Synthesis of a repressible enzyme is stopped by a the allosteric transition b. the substrate…

A: In the regulation of gene expression, various mechanisms come into play to control the activity of…

Q: Identification and quantification of expressed genes initially requires a. reverse transcription of…

A: Gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the Synthesis of…

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.