An activator is to an enhancer as a(n) ____ is to a silencer. Mediator Repressor Inducer Transcription factor

Q: During the process of gene expression in eukaryotes, together with that help it find the promoter,…

A: This process is transcription. In this process, the DNA is transcribed to mRNA in a 5' to 3'…

Q: A double stranded region of RNA that can stall ribosomes is a(n) A. repressor sequence B. operator…

A: The RNA is produced from the DNA by transcription process and this RNA is used during the…

Q: When tryptophan binds to trp repressor, this causes trp repressor to__________ to the trp operator…

A: An operon is a genetic administrative system in which genes code for specific proteins that are…

Q: Mutation in the operator that reduces the affinity of the operator for the repressor protein…

A: Lac operon is an inducible operon. When lactose is present in medium, then lac operon starts.

Q: Which one of the following genes encodes a transcription factor

A: Transcription factor or TF is also referred to as sequence-specific DNA-binding factor in molecular…

Q: Describe the function of activators and repressors.

A: Activators and repressors are the terms used for the transcription factors which are basically the…

Q: Match each of the following to cis-acting or trans-acting. If you are in doubt, try drawing out a…

A: Operon is a set of structural genes in a bacterial cell, along with common promoter and other…

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 statements about gene regulation is false?   a. An operon contains DNA…

A: Introduction Gene expression is the process in which the genetic information present in the DNA…

Q: What type of control generally involves binding of a repressor protein to a regulatory DNA sequence?…

A: Repressor : DNA binding protein which inhibits the expression of 1 or more genes via the binding to…

Q: Compare and contrast how activators, coactivators, repressors,TFIID, and mediator play a role in…

A: Transcription is a process of transcribing the template DNA into complementary mRNA sequence which…

Q: 1 [Choose ] Choose Promoter Operator Regulatory Gene Active Repressor Protein Structural Genes 3…

A: Lac operon is basically a mechanism essential in the metabolism in the E.coli bacteria.

Q: A down promoter mutation causes the promoter of a gene to be_______ like the consensus sequence and…

A: For gene expression, the promoter is the most essential element, since it is the DNA…

Q: Contrast positive versus negative regulation of gene expression. Describe the role of the repressor…

A: Positive and negative control of gene expression In some cases, the product of a regulatory gene is…

Q: An enhancer sequence must be located immediately upstream from the gene it affects is required for…

A: Enhancer sequences are defined as a regulatory sequences of DNA that when gets bound by…

Q: 6. _____ is a DNA sequence. 1.Coactivator   2.Corepressor   3.Enhancer   4. Inducer…

A: Deoxyribonucleic acid or DNA is a genetic material present in each and every individual that…

Q: The antagonist of the inhibitor in down regulation is called: A. repressor B. promoter C. inducer D.…

A: explanation-An decrease in the number of receptors on the surface of target cells making the cells…

Q: How does reverse methylation affect gene expression? Select one: o a. The gene is turned off, but…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: Four terms and statements related to gene regulatlon Match the correct term to each of the four…

A: According to the question, four terms and statements are related to gene regulation in bacteria are…

Q: All of the following, except one, down-regulate genes. Which is the one factor below that…

A: Introduction: Gene expression is the process through which our DNA instructions are converted into…

Q: What is the effect of an increased Cro concentration on the expression of the gene for the λ…

A: The lytic cycle is the rupture of the host cell, resulting in the release of a number of viruses.…

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: The coding sequence for gene F is read from left to right. The coding sequence for gene G is read…

A: The original DNA strand that mRNA is built from is called the template strand because it serves as a…

Q: When taken up by a cell, which of the following molecules binds to a repressor so that the repressor…

A: In the subject of molecular biology, an inducer is a molecule that regulates gene expression. An…

Q: A cell has evolved in an environment that lacks a particular food source. However, when given this…

A: Lac operon:  In E. coli and other enteric bacteria, the lactose operon (lac operon) is required for…

Q: When a protein needs to be made, a signal is sent to a cell to turn on the ____ that codes for the…

A: Transcription and translation are the two processes that are involved in the central dogma of life.…

Q: Proteins that increase the efficiency of RNA polymerase binding to the promoter are called O…

A: Gene expression is increased with binding of RNA polymerase to gene promoter and then initiate…

Q: 1. (a)  Binding of inducer protein to repressor protein     Gene is switched ON     Gene is…

A: Gene regulation is done with the help of the regulatory protein binding with the regulatory sequence…

Q: What is the function of a repressor protein?   Question 3 options:   To turn on transcription by…

A: In the genome of prokaryotes and eukaryotes there are many sequences such as structural gene…

Q: Insulator regions make sure that A. genes are protected from transposon insertions B. genes are…

A: Gene is the basic unit of inheritance in the DNA of organisms. They have a specific role in an…

Q: Fill in the blanks.  In this schematic, [] represents a gene (DNA) that is transcribed and processed…

A: Transcription is a significant process that occurs in a cell through which the RNA is synthesized…

Q: The transcription factors would recognize and bind to nucleotides between the positions…

A:

Q: 1. (a)  RNA polymerase synthesis in a 5 -3 direction     Gene is switched ON     Gene is switched…

A: RNA synthesis and DNA synthesis both takes place in 5' to 3' direction. But these two synthesis has…

Q: This complex assembles and organizes nucleosomes and contributes to gene repression.   a- SWI/SNF…

A:

Q: a) Tryptophan-repressor complex binds to operator     Gene is switched ON     Gene is switched OFF…

A: The tryptophan operon , required for the synthesis of the amino acid tryptophan, is an example of a…

Q: During attenuation, when tryptophan levels are high, the ________ stem-loop forms and transcription…

A: The genes for the enzymes to synthesize the amino acid are clustered in operons which are either…

Q: the above E. coli cell, with high glucose and low lactose levels, what happens at the operator?…

A: Lac operon is for lactose metabolism and transport in the cell. For example E coli lac operon , it…

Q: Which of the following is characteristic of genes and gene regulation in both bacteria and…

A: Genes are generally defined as the way that they are been collections of nucleotides that code for a…

Q: The following diagram depicts the elements at the: Ac TTC g99 Eca cgcc tataan ATT BRE TATA box Inr…

A: The core promoters are contiguous DNA sequences sufficient to initiate the accurate initiation of…

Q: The binding of the inducer to the repressor causes the repressor to O bind to the operator. O stop…

A: Lac operon is a type of gene expression in prokaryotes. There are genes that code for different…

Q: The following diagram illustrates four genes from the genome of a certain insect. Different binding…

A: Enhancers are transcriptional activation factors that bind to the upstream region of the promoter…

Q: 1. Directly to enhancer RNA polymerase II 2. Directly to promoter Indirect repressors 3. Indirectly…

A: The genome contain genes, which are the regions of DNA that gets transcribed to RNA. Only a small…

Q: The cI gene that encodes the λ repressor has two promotersdesignated PRE and PRM. Which of the…

A: The λ phage has a double-stranded DNA genome with 12base pairs of single-stranded DNA which are…

Q: Repressor molecules bind toa) Operatorb) Promoterc) Enhancerd) Hormone response element

A: An operon has certain regulatory sequences that help in the regulation of transcription. They can…

Q: A repressor is a __________ that _________ transcription. a. small effector molecule, inhibits b.…

A: Transcription refers to the process in which the deoxyribonucleic acid (DNA) molecule is transformed…

Q: The regulator protein that acts on a negative repressible operon is synthesized as a. an active…

A: Operons consist of multiple structural genes grouped together with a promoter and an operator along…

Q: What term is used to describe the DNA sequence to which a repressor binds? attenuator operator…

A: Operon is operating units which can be defined as the cluster of genes located together on the…

Q: Transcription factors include ______________.   a. silencers and enhancers     b. promoters and…

A: DNA is the genetic material and made of adenine, guanine, thymine, and cytosine. DNA makes up the…

Q: Transcription factors a. help the RNA polymerase bind DNA b. are involved in chromatin remodeling,…

A: Introduction “Transcription Is The Process Of Gene Expression That Involves The Synthesis Of RNA…

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.