After treating cells in tissue culture with an HDAC inhibitor, which of the following is the most likely outcome? A. Repression of transcription B. Promoter methylation C. Enhanced splicing D. Activation of transcription E. Depends on the cell type

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: Gene expression array technology has been used to do which of the following (select all that apply)?…

A: Gene expression array technology is a technology used to measure the expression level of thousands…

Q: If the above gene is one of the three structural genes of the lac operon that codes for the protein/…

A: The bacterium Ecoli possess a highly effective lactose Metabolism process . The lac operon is a…

Q: Match the key complex or product to its related process of regulating gene expresSion. a.…

A: Operon is a functional unit of DNA. It contains a cluster of genes transcribed in mRNA and…

Q: association of 2alpha and 2 beta chains to form adult hemoglobin     identify which describes the…

A: Translation is process of conversion of RNA to protein.

Q: Although the specific mechanism of RNA interference has not been fully defined, it involves A. the…

A: The RNA interference works at the post transcriptional level because it occurs after the synthesis…

Q: A newly synthesized drug is able to inhibit growth of pathogens by inhibiting a genetic process of…

A: Introduction Prokaryotes and Eukaryotic molecular mechanism is quite different. There is difference…

Q: transcriptional repressor leading to decreased gene expression. a. chromatin remodelling complex…

A: Transcriptional repressors are the molecules that block/inhibit gene expression. They directly act…

Q: Define the following terms:a. mRNA scanningb. transcript localizationc. glycosylationd. targetinge.…

A: The proteins are synthesized from the mRNA, which is modified post-translationally in ER. After…

Q: An enhancer:  A. is a consensus sequence in DNA located where RNA polymerase first binds. B. may…

A: An enhancer refers to a sequence in the region of DNA that bind to certain transcription factors and…

Q: Operons can not be:   a. Negatively regulated b. Positively regulated c. Constitutive d. Inducible…

A: The workhorses of a body are proteins. All or every function of the body are carried out by the…

Q: he bands indicated by arrow "A" (to the left of the western blot) most likely represent:   A.…

A: The bands indicated by arrow "A" (to the left of the western blot) most likely represent:-

Q: Propose a strategy to prevent HIF-alpha signaling in the TME. What do you think would happen in a…

A: The oxygen-sensitive transcriptional activator HIF-1 (hypoxia-inducible factor-1) is an important…

Q: β-globin gene indicate that some areas are more sensitive than others. When mutations occur in…

A: Promoter is a sequence in the DNA where RNA polymerase recruites itself. It is a very crucial region…

Q: A mechanism of control in E. coli not discussed in this chapter involves pausing of ribosomes…

A: Introduction  Gene Regulation: Expression of gene is highly regulated in both prokaryotes as well as…

Q: Which of the following combinations will cause transcription to be activated? a. A repressor plus an…

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

Q: egulatory proteins in Prokaryotes shut off transcription by binding to a site immediately in front…

A: In the given question options are given in accordance to regulation of transcription in prokaryotic…

Q: Positive regulators are called: A. Repressors  B. Activators C. Enhancers D. None of the above

A: Transcription is a process by which the RNA is synthesized from the DNA sequence. RNA polymerase is…

Q: How can Cas9 technology be used in gene therapy. A. Base editing can be used to repair DNA error…

A:

Q: Which of the following is true of CpG islands? a. They are methylated near promoters of actively…

A: Deoxyribonucleic acid is a molecule composed of two polynucleotide chains. It coils around each…

Q: The gad operon is controlled by a number of transcription factors that regulate a promoter of…

A: Bacteria re found in prokaryotes. They are more primitive as compared to eukaryotes.

Q: Predict and explain the effect on GAL1 transcription, in the presence of galactose alone, of the…

A: Note: Hi! Thank you for the question. As per the honor code, we are allowed to answer three…

Q: Define the following terms:a. cohesinb. transcription factoryc. P bodiesd. CTCFe. ENCODE

A: There are cellular pathways that help to transfer genetic information and encode it to the protein.…

Q: Is each of the following statements true or false? A. An enhancer is a type of regulatory element.…

A: Gene is a section of DNA with information to construct a protein. Gene is actually made from a…

Q: Assembly of transcription initiation complexes is mainly controlled by

A: Assembly of transcription initiation complex is a process of bringing together all the components…

Q: Define the following terms:a. signal peptideb. preinitiation complexc. initiation complexd. PABPe.…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Which statement about the transcription attenuation mechanism is TRUE? 1.In some operons (e.g., the…

A: Transcriptional attenuation is a regulatory mechanism that causes premature termination of…

Q: A transcription factor (protein - orange/green) is bound to a promoter of a gene (DNA - blue) it…

A: The control of gene expression is a complex process that involves the interaction of numerous…

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: Which of the following is NOT a description of an epigenetic modification? A. regulatory patterns…

A: Changes in gene expression that are not produced by changes in DNA sequences but are caused by…

Q: Which of the following is an example of allosteric regulation? A. the binding of CAMP-CAP to DNA B.…

A: Allosteric regulation is a form of regulation where enzymes or molecules are regulated by binding to…

Q: Provide the SIGNIFICANT differences between the following: 1. Regulation AFTER transcription mRNA…

A: The process of mRNA processing involves the removal of the intron sequences and the joining together…

Q: Under the following conditions, what will be occurring with the lac operon? Glucose: Present…

A: lac operon is present in E.coli and contain genes that control lactose metabolism and only active…

Q: The MRNA for a mammalian peptide that enhances electrolyte transfer to reduce paralysis was spliced…

A: The cells are of two types eukaryotic and prokaryotic cells. The primary difference between the cell…

Q: Which of the following is generally true about eukaryotic gene regulatory regions? a. All regulatory…

A: Genes are the segments of DNA that code for polypeptide chains. The expression of the genes in…

Q: Histone deacetylase (HDAC) enzymes   a.Promote initiation of translation. b.Complex with…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

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…

Q: What is one function of TFIIH during transcription?    a. Recruiting the TATA-box binding protein…

A: Transcription factor II Human is a crucial protein complex which have important role in…

Q: The phosphorylation of the RNA polymerase II tail is important for the following EXCEPT a.the…

A: Among many subunits, the largest subunit of RNA polymerase 2 (RBP1) has a long carboxy-terminal tail…

Q: which of the following is true regarding SLI? a. Contains the TATA binding protein  b. Binds first…

A: SL1 or Selective factor 1 is a transcription factor.  SL1 binds to the promoter of the gene. RNA…

Q: Promoters are DNA sequences a. near a transcription start site b. bound to a repressor protein c.…

A: it is related to molecular biology.

Q: Provide the SIGNIFICANT differences between the following: 1. Operon Systems Inducer/Lac…

A: An operon is a cluster of functional genes which are regulated by the common operator. Operons…

Q: The E. coli lacZYA región will be transcribed at a rate greater than the low basal rate if: A.…

A: In lac operon, there are a set of genes that regulate the metabolism of lactose in the E.coli…

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.