Describe the cis-acting elements that control tissue-specific transcription of eukaryotic protein-encoding genes

Q: Describe the cis-acting elements that control tissuespecific transcription of eukaryotic…

A: The transcriptional machinery of eukaryotes consists of two regulatory components, namely the…

Q: Compare the structures and functions of transcriptionalactivators and repressors.

A: The transcription factors are the molecules or the chemical agents, which can bind to the promoter…

Q: Explain the process of pre-mRNA splicing in nuclear genes.

A: Pre-messenger ribonucleic acid (mRNA) splicing is essential process for the gene expression in…

Q: The lac repressor and the pur repressor are homologous proteins with very similar three-dimensional…

A: The lac represser supermolecule, LacI, prevents the transcription of genes concerned in lactose…

Q: Explain Phenotypes of mutations in genes encoding transcription factors.

A: Some genetic disorders caused by mutation in genes encoding components of the transcriptional…

Q: Discuss all the different ways and mechanisms that eukaryotes use to regulate gene expression.

A: Given:  The different ways and mechanisms that eukaryotes use to regulate gene expression.

Q: Compare and contrast the transcriptional regulation of GAL genes in yeast with that of the lac genes…

A: The way by which a cell regulates the conversion of DNA to RNA is termed as the transcriptional…

Q: Explain the fundamental differences between negative control and positive control of transcription…

A: In prokaryotes transcription process is defined the piece or portion of bacterium DNA which is…

Q: List five events other than transcription initiation thatcan affect the type or amount of active…

A: A eukaryotic cell contains a nucleus, membrane-bound organelles, and cytoplasm which are enclosed by…

Q: Describe three ways that the function of a regulatory transcription factor can be modulated.

A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…

Q: How does Elongation Factors Regulate the Initial Stages of Transcription in the Promoter-Proximal…

A: Transcription is defined as the process of copying a DNA segment into RNA. The segments of DNA that…

Q: Through alternative splicing, eukaryotes (a) reinforce gene inactivation (b) prevent transcription…

A: The transcriptional process of genes has some differences in prokaryotic cells and eukaryotic cells.…

Q: Diagram the regulatory regions of a typical eukaryotic promoter and how they interact to regulate…

A: Gene expression is the process through which information from a gene is used to create a functioning…

Q: In response to potentially toxic substances (e.g., high levels of iron), eukaryotic cells often use…

A: Post-transcriptional modifications of pre-mRNA molecules like capping, splicing, and…

Q: Name the lambda promoters whose expression is regulated by the cro protein. For each promoter you…

A: CI represses cro and Cro represses cI. This is referred to as the double-negative feedback loop and…

Q: Describe how mature messenger ribonucleic acids (MRNAS) are post-transcriptionally processed in the…

A: Post transcription modification occurs in eukaryotes. Transcription makes pre -mRNA that must be…

Q: How are the actions of lac repressor and trp repressor similar and how are they different with…

A: Repressors are the proteins that binds to the DNA (deoxyribonucleic acid) molecule and regulates the…

Q: Transcriptional regulation often involves a regulatory protein that binds to a segment of DNA and a…

A: The process involved in regulating copying of instruction from the DNA into RNA is called…

Q: In eukaryotic gene regulation, the Mediator complex mediates interactions between: The preinitiation…

A: Mediator complex found in Drosopila , mammals and yeaat.  It interact with transcription factor…

Q: If a gene is repressible and under positive control, what kind of effector molecule and regulatory…

A: Gene regulation vary in prokaryotes and eukaryotes. Prokaryotic genes regulation may administrated…

Q: Explain how Promoters, enhancers, and silencers influence transcriptioninitiation ?

A: Transcription is the process in which DNA is transcribed or converted into mRNA. The information…

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: Compare the control of gene regulation in eukaryotes and prokaryotes at the level of initiation of…

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

Q: post-transcriptional modifications that occur in mRNA and tRNA.

A:

Q: 1a) Eukaryotic cells can completely inhibit transcription of a specific gene in a very effective but…

A: Eukaryotic genes are monocistronic. It means that every gene is having its own promoter. So if we…

Q: Describe the process of transcription in eukaryotes from the time the RNA polymerase binds to the…

A: The process of transcription in eukaryotes occurs in the nucleus of the cells and it includes the…

Q: Describe all of the ways in which RNA is modified after transcription in eukaryotic cells

A: Transcription of creating RNA from a template of DNA. It can be found in the nucleus of eukaryotes.…

Q: Explain how cis- and trans-acting elements reguate gene expression in bacteria.

A: INTRODUCTION Cis-acting factors are mechanisms that affect gene expression only on the same…

Q: Some compounds called antiinducers bind to repressors such as the lac repressor and inhibit the…

A: Operon is a genetic regulatory system that is mainly found in bacteria and viruses. In this system,…

Q: Transcriptional enhancers are: O A operator sequences that repress transcription by blocking RNA…

A: Transcription is the mechanism by which an RNA duplicate of a gene arrangement is created. This…

Q: Explain how a regulatory transcription factor exerts its effects via TFIID or mediator.

A: Transcription is a process in which the nucleotide sequences of a gene are transcribed into the mRNA…

Q: List two different ways in which trans-acting small RNAs(sRNAs) regulate the expression of target…

A: Trans-acting small RNAs or ta-siRNA are a class of siRNA that is responsible for repressing gene…

Q: Describe what must happen for a cell type-specific gene to be transcribed in a cell of that type.

A: DNA is deoxyribonucleic acid, and it is the molecule that contains the genetic instructions housed…

Q: State whether each of the following would be likely to (generally) increase or decrease the…

A: Gene expression regulation involves the modification of both the DNA and the packaging proteins…

Q: Discuss the regulation of transcription in eukaryotes, including the roles of transcription factors…

A: Introduction: Transcription is the mechanism by which an RNA copy of a gene sequence is produced.…

Q: Define how Activators and Repressors Interact with General TranscriptionFactors ?

A: Transcription factor binds to sites called enhancers and silencers which can switch on or off the…

Q: Explain the different ways in which eukaryotic transcription elongation is controlled.

A: Transcription is the process, which results in the synthesis of mRNA.

Q: explain transcriptional repression of retrotransposons

A: Transposons are the DNA elements that are known to be the controlling elements that affect the gene…

Q: HOw does dimerization of transcriptional regulators Increase their specITICity for target DNA…

A: Transcription Factors -- Transcription factors are integrated multiple signal transduction pathways…

Q: Define the importance of zip code in actin mRNA 3'-UTR ?

A: The zip codes lacks the similarity at the levels either the primary or the secondary structures.…

Q: Mechanisms that inhibit TE activity include theproduction of transposition repressors…

A: Transposable elements (TEs) are the small segments of DNA that can move from one position to other…

Q: How enhancers influence transcription of eukaryotic genes ?

A: How a cell regulates which genes out of several in its genome are "turned on" is known as gene…

Q: Describe the major mechanisms that allow eukaryotic genes to have transcription states that range…

A: Transcription is the process of formation of a sequence of messenger RNA using DNA as a template and…

Q: Explain the different mechanisms involved in the Control of RNA expression by differential…

A: Gene expression can be defined as the process by which a piece of information from a gene is used…

Q: how does phosphorylation of eukaryotic transcription factors regulate the function, using two types…

A: Introduction - Phosphorylation is a biological process in which phosphate is added to an organic…

Q: Explain post transcriptional processing in eukaryotes

A: Transcription is the process of producing pre mRNA from the template strand of DNA. The RNA…

Q: Briefly explain how transcriptional activator and repressor proteins affect the level of…

A: Transcription is the first step in central dogma of protein synthesis. It involves formation 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.