glucose absent lactose present ituations the condition of each of these components (yes or no) glucose present glucose present glucose absent lactose present lactose absent lactose absent repressor synthesized repressor binds to lactose repressor binds to operator CAP is synthesized CAMP binds to CAP CAP binds to CAP site RNA polymerase binds to promoter transcription of Z,Y,A occurs translation of Z,Y,A occurs lactose is split
Q: Most structural genes of bacteria are grouped together and transcribed from a single affect…
A: DNA and RNA are are nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid…
Q: promoters Insulators are particular that control access of enhancers to translation transcription…
A: Introduction Gene expression is the process through which information from a gene is used to create…
Q: Which of the following IS a trans acting factor? Shine Dalgarno sequence O Oric Lac Operator O TATA…
A: The trans-acting elements are record factors or other DNA-restricting proteins which perceive and…
Q: bolite activator protein
A: The lac operon can be defined as the operon or group of genes consist of a single promoter that can…
Q: Match the following Prompts An AT-rich region found in eukaryotic promoters is called the box. The…
A: Transcription: The process of synthesis of mRNA transcript from double stranded DNA template by the…
Q: What would the direct consequence to a cell be if there was a loss of function of Transcription…
A: Transcription is the process in which the DNA is transcribed into an mRNA. There are three basic…
Q: Select the descriptions that are specific for a general transcription factor Select 2 correct…
A: Correct options are: Option A i.e. transcription factor can act to repress or activate a certain…
Q: EUKARYOTIC RNA POLYMERASE TRANSCRIPTION FACTORS Rather than just a sigma factor to recognize the…
A: Answer :: RNA polymerase extend or polymerise RNA. Sigma subunit of RNA polymerase binds to…
Q: TBP stands for?a) TATA box polymeraseb) TATA-box binding proteinc) Transcription associated factord)…
A: TBP is a type of a protein that helps in the process of transcription. Transcription is the process…
Q: A bacterial cell with trp and lac operons in a medium with high concentration of lactose,…
A: *NOTE: Kindly repost for other questions. Dear Student as per the guidelines we are supposed to…
Q: to that in humans. The molecule that is most similar in function to the bicoid and the molecule that…
A: Introduction Transcription is a process in central dogma where the DNA strand is transcribed into a…
Q: 1. Contents of the diagram below was discovered in the 1960s. Explain in detail what this diagram is…
A: Transcription is defined as the process by which the information present in a strand of DNA will be…
Q: lactose a. Activation CAP lac I repressor allolactose b. Repression CAP lac I repressor CAMP с CAMP…
A: Lac operon consists of the cluster of genes. The letters depicted in the lac operon below are as…
Q: When present, the TATA, CAAT and GC boxes are typically found within 100 - 150 bp upstream from the…
A: The TATA box is a conserved nucleotide sequence located around 25-30 base pairs upstream of the…
Q: tatement about the HATS is FALSE? do not interact with non-pioneer regulatory transcription facto…
A: HATs : Histone acetyl transferases. These are the enzymes that acetylate conserved lysine residuals…
Q: X-gel Allows transcription to occur on a lac repressor DNA element containing promoter. binds to…
A: X gal is galactose based gel. In the above question all options are correct i.e. all of above
Q: Match the correct answer for when an E. coli cell with a functional lac operon is growing in the…
A: When glucose and lactose are present in medium then E.coli uses glucose first and inhibits the…
Q: Which of these are genetic regulatory proteins and which are small effector molecules?
A: Regulatory protein (or gene-regulatory protein) is any protein that controls the transcription.…
Q: The Assembly of Class III Transcription Initiation Complexes consists of TATA-binding protein (TBP)…
A: Transcription initiation complex It is the complex of transcription factors and RNA polymerase…
Q: 2) Complete the table to figure out if transcription is happening or not. Glucose Lactose…
A: Lac operon is a metabolic operon, that is necessary for the lactose metabolism in bacteria. It…
Q: Glucose absent, lactose absent Glucose absent, lactose present Glucose present, lactose…
A: An operon is found in bacteria and viruses as a genetic regulatory system. The gene coding for…
Q: Lac Repressor A Operator Lac Y eene Promoter Lac Z eene Lac A gene В Lac Y eene Lac A gene Promoter…
A: Lac operon consists of a group of genes that codes for a protein that allows bacteria to use lactose…
Q: Initiation of transcription A occurs at terminators B occurs only in eukaryotes C occurs in…
A: The transcription is the process by which the genomic DNA is converted into messenger RNA
Q: The RNA-induced silencing complex (RISC) I. binds to and unwinds ds siRNA/MIRNA to produce ss…
A:
Q: Select the descriptions that are specific for a regulatory transcription factor (RTF) Select 4…
A: Genes are the fundamental unit of heredity. They store genetic information in the form of DNA, which…
Q: fluctuating Proteolytic cleavage is used to inactivate repressors in an essentially process, such as…
A: Proteolytic cleavage is basically the process of breaking the peptide bonds between amino acids in…
Q: How do activators facilitate transcription? Activator (inactive) Activator- binding site RNA…
A: Transcribing the template DNA into a complementary mRNA sequence, which is then used to create…
Q: Usually found in prokaryotes, regulatory sequences lying adjacent to the DNA being transcribed are…
A: In prokaryotes, the process of transcription and translation occur simultaneously due to the lack of…
Q: How is a corepressor different from an inducer? How is it similar?
A: A gene is a DNA-based functional heredity unit that delivers instructions for the production of RNA…
Q: When he sell requires a production of the specific proteins what steps must occur
A: Answer: PROTEIN SYNTHESIS = These are the long chains of amino acids together formed in a long…
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: If a cell cannot make any Rb protein, how will this affect the function of E2F?
A: Mutation in the deoxyribonucleic acid (DNA) can cause cancer. Abnormal and unnecessary growth of…
Q: In the lac operon, regulation of gene expression by CAP-CAMP is a type of O a. positive repressible…
A: Lac operon can be defined as the set of constitutive genes with a single promoter that encodes for…
Q: The RNA-induced silencing comp (RISC) I. binds to and unwinds ds siRNA/miRNA to produce ss…
A: A multiprotein complex called RISC contains one string of a small interfering RNA (siRNA) or micro…
Q: Label if each of the fonowing Sequences are present in DNA, pre-RNA andlor MRNA Of eukanyotes :…
A: All the information is present in the DNA that will be required for the synthesis of proteins. In…
Q: ose d CAP lac I repressor allolactose CAMP C RNA Pol promoter operator +1 lac Z lac Y lac A DNA
A: E.coli's Lac operon contains the genes required for the lactose metabolism. Genes involved in the…
Q: When would the lac operon in E. coli be repressed, and why?
A: Operon includes a group of structural genes and regulatory sequences.
Q: Which RNA conformation favors transcription—the form with the antiterminator stem-loop or the form…
A: Genes are basic physical and functional unit of heredity. It is a part of DNA that has instruction…
Q: Match the parts of the Lac operon with the correct name. A C DNA MRNA RNA polymerase
A:
Q: If a repressor prevents TFIID from binding to the TATA box, why does this inhibit transcription?
A: Genes are composed to make the control of gene expression simpler. The promoter region is promptly…
Q: For each description, state if the gene expression will increase (1), decrease (2) or remain the…
A: The transcription is a process through which information in the DNA molecule is transcribed into…
Q: energy on transcription during starvation Stationary phase is caused by rifampin treatment, and…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
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 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: Indicate whether each of the following events occurs when tryptophan is high or when tryptophan is…
A: In some operons like tryptophan operon, transcription starts from transcription start site, but get…
Q: Match the activity with the part of the gene. 1. Eukaryotic promoter sequence 2.Prokaryotic promoter…
A: Transcription is the process of synthesis of mRNA from DNA. Promoters are landmarks for the…
Q: A pre-initiation complex (PIC) is required for transcription to begin. State in which TFII protein…
A: A pre-initiation complex(PIC) is a complex chain of protein that is required for the transcription…
Q: When CAMP binds to the Catabolite Activator Protein (CAP), it causes a conformational change on the…
A: cAMP Cyclic Adenosine Monophosphate, it is an compound that act as secondary messenger and takes…
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- VEGF is synthetized in cancer cell to promote angiogenesis. Which sentence is correct? Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator, which is constantly active; mature VEGF chain is released to the lumen through signal peptidase cleavage. Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator, which is activated by start-transfer sequence; mature VEGF chain is . Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator, which is activated by start-transfer sequence; mature VEGF chain remains embedded to the membrane for further transport Polypeptide chain is synthesized on ribosomes attached to the ER (rough ER), and translocated through the membrane to the lumen by protein translocator,…Which phase are initially inhibited by Sic1.Phosphorylation marks Sic1 for ubiquitinylation by theSCF ubiquitin-protein ligase and proteosomal degradation,releasing activated S phase CDKs that trigger onset of theS phaseDefine SCF-proteasomedegrades phosphorylatedS phase CDK inhibitor
- Activation of phosphatidylinositol-3-kinase (PI3K) stimulate protein-protein interactions. True or FalseOne form of anemia results when individuals have a deficiency in the enzyme phosphatidylinositol glycan A (PIGA). This enzyme is required for the membrane attachment of proteins anchored by glycolipids to the plasma membrane, using what is called a ‘GPI-linkage.’ Included in the group of GPI-linked cell surface proteins is DAF/CD55. These individuals become anemic because: DAF/CD55 prevents the lysis of red blood cells by infecting pathogens. DAF/CD55 normally prevents the spleen from clearing healthy red blood cells from the circulation. In the absence of PIGA, the red blood cell membrane is bare of proteins allowing increased access of complement activating proteins to attach to the cell membrane. DAF/CD55 is a complement inhibitory protein that inactivates any C3 convertase that may form on host cell surfaces. In the absence of PIGA, red blood cells are unable to synthesize high levels of hemoglobin.GIVE GRAPHICAL MODEL BASED ON GIVEN INFORMATION: There are three elements in this specific model: Alpha Secretase: This node represents the variable or concept of Alpha Secretase, a proteolytic enzyme that cleaves Beta-Amyloid molecules. Beta-Amyloid Formation: This node represents the variable or concept of Beta-Amyloid Formation, which describes the process of the formation and accumulation of Beta-Amyloid protein in the brain. It is regarded as toxic and contributes to the onset of Alzheimer's disease. Calcium signaling: This node represents the variable or concept of Calcium Signaling, which refers to the cellular process involving the regulation and influx of calcium ions. Alzheimer's disease is known to influence calcium signaling pathways. The directed edges in the graph indicate the causal relationships between the variables. The situation: There is a directed edge between Alpha Secretase and Beta-Amyloid Formation, indicating that Alpha Secretase has a direct…
- A pharmaceutical company just developed a drug (Cytarabine) that inhibits the activity of cytosine deaminase but increases intracellular concentrations of ara-dCTP in tumor cell. This will likely produced increased tumor sensitivity to Cytarabine. Group of answer choices True FalseTPA protein function. Use at least two sentences to describe the function of the TPA protein.Tumor necrosis factor (TNF) signaling Explain in detail each step in figure 8.53. Make sure to include an explanation of the proteolytic and phosphorylation cascades.
- PROTEINS1. What will happen to free tyrosine after being subjected to xanthoproteic analysis (is it positive or negative, include color)2. What will happen to lysine after being subjected to millon's analysis (is it positive or negative, include color)An SH2-containing protein contains a mutation that changes its binding pocket such that tyrosine and phosphotyrosine bind with equal affinity. As a result, MEK activity: does not change with receptor dimerization and transautophosphorylation decreases due to changes in Raf activation increases with ligand binding-induced dimerization decreases due to allosteric inhibition of SH2-domain bindingA. Elastase is activated by trypsinB. Trypsinisactivatedbyelastase Which statement is correct? Proteolytic activation of chymotrypsin from chymotrypsinogen requires cleavage of four peptide bonds. Assume that any proteases can convert 100 substrates to 100 products. Activation of one enteropeptidase can eventually lead to formation of how many chymotrypsin proteins?