Which of the following statements concerning enhancer DNA sequences is true? Group of answer choices Enhancer DNA sequences must be located before (upstream) the genes they control. Enhancers DNA sequences are close to the genes they activate (via looping) even if they very far away as measured through the linear DNA sequence. Enhancer DNA sequences will not recruit their respective protein factors if you artificially insert the enhancer backwards. All these statements are true.

Q: When researchers analyzed the gad operon they found the following: Expression of the gad operon at…

A: Here we saw that mutant 1 is causing the expression of gad protein even at pH7 which was not…

Q: Model 1: What conditions would need to be present in the cell in order to reverse the regulatory…

A: The operon is the system that explains the regulation of gene expression in terms of switching “on”…

Q: In the lac operon (above), what happens when glucose levels are low, but lactose levels increase?…

A: Operon is the gene regulatory mechanism present in prokaryotic organisms. It regulates the…

Q: If a mutation is introduced into I-KBα that inhibits it phosphorylation by the IKK complex, this…

A: Mutation in I-KBα that inhibits its phosphorylation by the IKK complex can prevent the translocation…

Q: Which of the following statements about "Focused transcription initiation", "Dispersed transcription…

A: Transcription is the process by which the DNA sequence is "transcribed" into RNA sequence. It is the…

Q: Which of the following would most likely mimic Rb loss? Rb mutant where the phosphosites are mutated…

A: Rb is a tumor suppressor gene. Loss of function mutation in Rb gene leads to the retinoblastoma and…

Q: Which of the following DNA regions is NOT involved in gene expression regulation in eukaryotes?…

A: Promoter-proximal elements are the DNA sequences present in eukaryotes. These are located close to…

Q: Inversion of an enhancer region does not affect gene expression, but inversion of the promoter…

A: Key references:Bozhilov, Y. K., Downes, D. J., Telenius, J., Marieke Oudelaar, A., Olivier, E. N.,…

Q: Binding of transcription activator protein     Gene is switched ON     Gene is switched OFF…

A: Transcription is a process by which information of DNA segment is copied into the mRNA and it is…

Q: Which of the following is TRUE about attenuation?

A: In genetics, attenuation is a proposed mechanism of control in some bacterial operons which results…

Q: only in cell biology the Lac operon in bacteria encodes proteins required to import and digest the…

A: The lac operon, also known as the lactose operon, is found in E. coli and other intestinal bacteria.…

Q: You have isolated a protein that binds to DNA in the region upstream of the promoter sequence of a…

A: The promoter is the site of RNA polymerase binding that is very important step in the initiation…

Q: plus or ninus in each box to show that the cell will make, or will not make, tunctional Beta…

A: Lac Operon is the segment of DNA which controls the metabolization of lactose. It consists of…

Q: Cancer cells were characterized for their high transcriptional and translational levels. Direct…

A: Transcription factor – a material, such as a protein, that contributes to the purpose of a specific…

Q: Proteins that are retained in the ER have a KDEL sequence at their C-terminus.  To test the idea…

A: Protein disulfide isomerase,, is an enzyme in the endoplasmic reticulum (ER) in eukaryotes that…

Q: 3′-->5′ Exonuclease activity allows DNA polymerase III (Pol III) to back-up and fix a mismatched…

A: Since there are multiple questions in this particular question, I'll answer the first one for you.…

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: You are studying a new gene that is expressed within the adipose tissue of humans during the…

A: "Genes" can store genetic information in the form of DNA, which may be converted into functional…

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: Enhancers promoters changing transcription potential insulator sequence translation distant the same…

A: 1. Enhancers can regulate genes from a distance, and yet they influence expression of only some…

Q: You are a scientist studying muscle cells. You are interested in making all of the muscle cells of a…

A: Transcription is the process of formation of RNA using DNA as a template.

Q: a. How many enhancers were you able to identify with these set of experiments? Explain. b. If you…

A: Enhancers are the term used for the regions of DNA (deoxyribonucleic acid) that elevate the…

Q: Enhancers in eukaryotic genomes such as glucocorticoid response elements can upregulate multiple…

A: An Enhancer in Eukaryotic genomes is defined as the DNA sequence which promotes the transcription.…

Q: Explain how enhancers work and how they are identified

A: A gene is a set of nucleotides that codes for a particular protein. Gene expression causes the…

Q: Examples of cis-acting elements include promoters and enhancers.   true   false

A: Deoxyribonucleic acid (DNA) stores the cell’s genetic information and is present in the nucleus of…

Q: In rho dependent transcription termination the rho factor binds to? You have a 18 ml sample of…

A: Introduction :- A zygote is the initial cell formed when two gamete cells (sperm and egg) fuse…

Q: In the figure below, what is represented by the line labeled A? TFIIB recognition element DNA in m…

A: Transcription of genes includes the formation of RNA using the template DNA. It includes the enzyme…

Q: Pre-initiation complex (PIC) is formed right before the initiation of genes, which of the following…

A: The preinitiation complex is a protein construct that forms in eukaryotic cells prior to…

Q: Briefly describe two different ways in which intragenic suppressors can reverse the effects of…

A: The second mutation that partially or wholly reverses the phenotypic or genotypic effects of an…

Q: A researcher has just identified a new protein in bacteria that binds DNA near the promoter of a…

A: DNA (deoxyribonucleic acid) was discovered by Friedrich Miescher. Nucleotides are the structural…

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: Enhancers contain binding sites for transcription factors that regulate transcription. are…

A: Enhancers  Enhancers are found in the upstream of DNA. They are short sequence about 50 to 1500 base…

Q: RNAP can access the lacZ promoter irrespective of whether CAP-CAMP is binding the CAP o True False

A: Lac operon is a set of structural genes regulated by a common promoter. It is found in bacteria.

Q: In any experiment, controls are essential in order to determine the specific effect of changing some…

A: Controls are used in the experiment to analyze the obtained results and reach a conclusion on…

Q: Does it need active form or inactive form of the repressor ? 3) What is role of RNA polymerase,…

A: An operon is defined as the collection of coordinately regulated genes . Q2Ans:In a negative control…

Q: The following diagram show what is required for an active promoter of a gene of interest, where:A1 =…

A: Based on the given diagram, here are the predictions:Chromatin conformation: EuchromatinMethylation…

Q: Suppose MYC regulates gene X by recruiting DNA methyltransferases (DNMTS). Which of the following…

A: cis regulatory elements are regions of non coding DNA which regulate transcription of neighbouring…

Q: sulators can block the effects of enhancers only when they lie upstream of a promoter within the…

A: Genetics is the branch of biology that deals with the study of genes, their inheritance patterns,…

Q: How would you identify patients whose tumor cells are particularly likely to have a somatic mutation…

A: Somatic mutation takes place in all types of cells in the body except the germ cells. Therefore…

Q: Itransferases and analyze the cells after they at do you expect to find in the promoter of gene X?…

A: Hematopoietic stem cells (HSCs) resides within the bone marrow, which serves as niche for the…

Q: You have cells that are mutant in CAP protein such that it cannot bind to CAMP. For these mutant…

A: Cap protein- In solution, the catabolite activator protein (CAP, also known as cAMP receptor…

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.