True or False? Eukaryotic genomes are organized into operons; each operon consists of a series of genes which code for enzymes involved in a metabolic pathway, under the transcriptional control of a single promoter sequence .

Q: please answer Why is it useful to have two different mechanisms of positive regulation? I.e. why…

A: The L-arabinose operon, also called the ara or araBAD operon, is an operon required for the…

Q: reduction in histone acetylation and reduced gene transcription. Given this information, which of…

A: Transcription is a highly controlled process and it requires the presence of enzymes polymerase and…

Q: State true or false, giving a brief justification: a. An enhancer is a type of regulatory element.…

A: Gene regulation is the process of turning genes on and off. During early development, cells begin to…

Q: Most mutations are harmful or neutral, although in rare instances some can be beneficial where hey…

A: TRUE

Q: EF-Ts factor regenerates EF-Tu/GDP from EF-Tu/GTP for the next round of elongation cycle in…

A: Introduction The Central Dogma states the formation of RNA from DNA and proteins from RNA.  The…

Q: Adenylyl cyclase can generate CAMP for use as a messenger within eukaryotic cells to stimulate the…

A: According to the question, we have to check that the above statement is true or false. So, let us…

Q: Some eukaryotic promoters contain an element positioned around nucleotide +1 called a…

A: The transcriptional initiator (Inr) for mammalian RNA polymerase II is a DNA sequence element that…

Q: True or False: Reoressors regulate gene expression by helping RNA polymerase bind to the promoter.

A: Gene expression is the process by which information from a gene is used in the synthesis of a…

Q: True or False: 1. All functional transcripts have been initiated, elongated and terminated with…

A: False : post transcription events include splicing, capping, tailing. Initiation is the beginning of…

Q: . true or false a) Capping is the process of adding poly-guanido methyl in the mRNA. (true/false)…

A: Ans a.)  Capping is the process of adding poly-guanido methyl in the mRNA. True  # It is a kind of…

Q: onsider a mutant of E. coli that has an inactivating mutation in the gene for the catabolite…

A: Catabolite activator protein (CAP) This protein senses the presence of glucose. It stimulates the…

Q: How many ATP and GTP molecules would be hydrolyzed in the synthesis of a 125 amino acid protein?…

A: ATP and GTP provide signals to drive many cellular functions.

Q: Some prion-related diseases, such as familial fatal insomnia, areinherited. How would you expect the…

A: Familial fatal insomnia is a medical condition characterized by insomnia or trouble sleeping. This…

Q: Explain using leucine zipper motifs as an example, how protein-protein interactions between…

A: DNA is the genetic information that a cell obtains from its parents. DNA contains a specific…

Q: Explain what would happen during transcription if the following events took place: If the TATA…

A: Transcription: The process of copying of genetic information present in DNA to RNA with the help of…

Q: IF-2, IF-3, EF-Tu, EF-G and RF-1 are all involved in prokaryotic translation.  List the roles of…

A: Translation is a process that involves the synthesis of an amino acid chain from a mRNA blueprint.…

Q: а. WHY do prokaryotes use operons? b. Fill out the following table: Mechanism Requires/Uses Results…

A: A) An operon is a cluster of genes that are transcribed together to give an uncoupled messenger RNA…

Q: Transcriptional termination generally will include the transcription of an inverted repeat in that…

A: Transcription is the process by which the information in DNA is transcribed onto the mRNA molecule…

Q: HOW THE RECOMBINANT PROTEIN COULD BE EXPRESSED IN E. COLI 1. STRATEGIES TO IMPROVE THE PROTEIN…

A: Protein expression is a feature of DNA Recombinant technology or genetic engineering. Protein…

Q: True/False: When first discovered, investigators found it surprising that some single-gene defects…

A: Immunodeficiencies happen when at least one segments of the safe framework is faulty. The most…

Q: The genetic code is both universal and degenerate. Explain how these aspects are an advantage, but…

A: Proteins are made up of amino acids encoded by codons. Each codon consist of three nucleotide which…

Q: True or False: When determining the transcription start site, there is a nucleotide position…

A: Question - True or False : When determining the transcription start site , there is a nucleotide…

Q: In transcription Rho-dependent termination in bacteriophage is more common than in bacteria. True…

A: Transcription is defined as the synthesis of mRNA from the template strand of DNA. The RNA…

Q: Do you expect operons to occur extensively in Eukaryotes? Yes or no and explain.

A: Operons (clusters of co-regulated genes with related functions) are a well-known feature of…

Q: Lactose operon and how does the system work

A: The functional unit of DNA (deoxyribonucleic acid) containing multiple genes, which are regulated…

Q: TRUE FALSE EF-Ts factor regenerates EF-Tu/GDP from EF-Tu/GTP for the next round of elongation cycle…

A: There are many biomolecules present in an organism and each biomolecule has a specific role.…

Q: Biotransformation. Explain the process of enzyme induction. What are the benefits or down-falls of…

A: Enzymes are proteins that increase the rate of chemical reactions by lowering the activation energy…

Q: his is a biochemistry question:   How do you expect the ability of sleep to bind glucuronolactone…

A: Glucuronolactone. This is a naturally occurring substance produced in small amounts within the body.…

Q: List and describe all the major players involved in transcription of the lac operon in bacteria…

A: Lactose operon is an example of inducible operon and it is the gene expression regulatory mechanism…

Q: True or False? The +1 transcription start site (+1 tss) occurs at the end of the 5' untranslated…

A: Transcription start site: This is the region of DNA upstream of 5'UTR from where transcription of…

Q: The possibility of a single locus in a DNA to code for different mRNAs.  If this is possible, what…

A: The possibility of a single locus in a DNA to code for different mRNAs.  If this is possible, what…

Q: Think about components/interactions of lac operon during conditions of: - glucose, + lactose…

A: In the presence of easily metabolisable sugars like glucose, the bacteria first utilizes the simple…

Q: Di- and trinucleotides are occasionally released from RNA polymerase at the very start of…

A: The biochemical substance that is carried forward from the preceding generation to the succeeding…

Q: True or False: 1. Amino acid chain elongates when the AA from the peptidyl binding site is added to…

A: The translation process is started by ribosomes. Ribosomes are made up of bigger and smaller…

Q: Leaderless. The MRNA for the A repressor begins with 5'-AUG-3', 5'-AUG-3', which encodes the…

A: mRNA or messenger RNA is the molecule synthesized during the process of transcription from the DNA…

Q: True/false? if false, justify briefly Bacterial operons gather open-reading-frames that are coupled…

A: An operon is a group of few genes that are regulated under the same promoter and operator region.…

Q: Speculate as to why eukaryotes have either a) much more complex promoter and enhancer regions than…

A: In eukaryotes the process of transcription and translation are physically separated because the…

Q: Resection of a bacterial chromosome in which genes for the enzymes of of a particular metabolic…

A: Genetic information is inherited to generations by means of DNA. The DNA has many genes that code…

Q: Predict the level of genetic activity of the lac operon as well as the status of the lac repressor…

A: Operon acts as a single regulated unit having one or more structural genes, a promoter gene, a…

Q: (True/False) There is no redundancy in enzymes that catalyze histone modifications, meaning that an…

A: NOTE- Since you have posted multiple questions, we will be solving the first two questions as…

Q: A rare genetic disorder affecting the degradation of hemoglobin made a man suffer extreme…

A: Sangers method is a DNA sequencing method and is also known as enzymatic chain termination method.…

Q: In site-directed mutagenesis experiments of an enzyme, scientists altered an aspartate residue to…

A: Enzymes are protein molecules that increase the rate of reaction by decreasing the activation…

Q: The trp operon vs. the lac operon: Which one of these is activated in the presence of a substance,…

A: An operon consists of a cluster of functionally related genes that are under the regulation of a…

Q: True or false:  When glucose and lactose are not present, the lac operon will be not be expressed at…

A: operon is a cluster of genes that helps in the transcription and translation of genes called gene…

Q: can I have a summary explanation  what effect does lactose have on the bacterial cell’s lac operon?

A: Lac operon  Lac operon is a group of three gene which help in the metabolism of lactose in bacteria.

Q: Until recently all known enzymes were proteins. SeveralRNA molecules have been shown to have…

A: Ribonucleic acid (RNA) is a polymeric molecule that plays a variety of roles in biology, including…

Q: humber of mutations affect the expression of the lac operon in E. coli. The genotypes of several E.…

A: Lac operon is a genetic unit that produces the enzymes necessary for the digestion of lactose. It is…

Q: Think about components/interactions of lac operon during conditions of: + glucose, - lactose…

A: The lac operon consists of three structural genes, a promoter, a terminator, regulator, and an…

Q: Tn10 has a ____________ structure and it is composed of a pair of insertion sequence elements (IS10)…

A: Tn10 is a transposable element that instead of replication uses the method of cut and paste. It is…

Pharmacokinetics

Pharmacokinetics is made up of two words: pharmakon means drug, and kinetics which means moving. Pharmacokinetics could be defined in simple words as the movement of drugs through the whole body and out of the body.