Define the following terms: Operon ORF Promoter Terminator polycistronic Oric Sigma subunit Pribnow box

Q: Draw out an example of a plasmid operon set up using amp resistance (outside the arabinose operon),…

A: Plasmid is the extrachromosomal DNA generally found in bacteria (prokaryotic cell) that can…

Q: What type of operon is arabinose operon? Dose the repressor bond when arabinose is I present or…

A: Introduction  An operon is a functional segment of Dna that houses a collection of genes that are…

Q: components of an operon into the appropriate order

A: components of an operon into the appropriate order:…

Q: Which of the following molecules is an inducer of the lac operon:a. Galactose d. Isothiocyanateb.…

A: The structural genes lac z, lac y, and lac in the lac operon code for beta-galactosidase (converts…

Q: The lac operon is an example of ________ control in which the presence of an ________ is required…

A: lac operon is present in E.coli and it produce the enzymes which are required for the lactose…

Q: Define an operon.give an example,exaplain an inducible operon?

A: Gene regulation is the mechanism which acts to either induce or repress the gene expression. It…

Q: A researcher was trying to determine whether two molecules (molecule A and molecule B) were co-…

A: CoRepressor - The function of the corepressor is to induce transcriptional silencing or to repress…

Q: Describe the terms: Transformation Operon Recombination

A: Hello you have asked question with multiple subparts. We will be able to answer only first three.…

Q: Vocabulary Words: (List at least 4 key words and define them) Define all of them: Operon: RNA…

A: In molecular biology the central dogma is the main process by which proteins are produced from the…

Q: Strain LOLZ has a mutation in the lacI gene that results in a lacI protein that cannot bind…

A: Lac operon is the segment of DNA which is responsible for breaking down of lactose into glucose and…

Q: In the presence of lactose and the presence of glucose the lac operon is not expressed Lacl is bound…

A: Introduction:- Lactose metabolism genes are found in the lac operon of E. coli. It is only expressed…

Q: that best fits the phrase below (1-20) Cis-acting B Post-transcriptional modification…

A: Francis Crick proposed central dogma. The RNA is formed from DNA with the help of enzyme RNA…

Q: In the lac operon, how would gene expression be affected if each one of the following segments was…

A: The lac operon is basically a group of genes with a single promoter whose genes encode proteins that…

Q: Components necessary for regulating the /trp/ operon do NOT include

A: Answer - Option E - CAP protein

Q: In prokaryotes, the sigma factor recognizes base sequences in the . which facilitates RNA polymerase…

A: The major step of initiation of RNA synthesis is the facilitation of RNA polymerase binding. This is…

Q: Which of the following arabinose operon regulatory sites is exclusively involved in the repression…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is Ara O2.

Q: Describe how the trp operon is under negative control

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

Q: Differentiate inducsible and repressible operon

A: The promoter and operator control the group of genes which are called operons. Some operons are…

Q: Explain the The Operon Model: Negative Control ?

A: The lac operon of E. coli contains genes involved in lactose metabolism. It is expressed only when…

Q: In E. coli, when glucose is present, galactose is used to make a component of the bacterial cell…

A: In the absence of glucose the operon is not described or transcribed at very low levels. When…

Q: In E. coli, when glucose is present, galactose is used to make a component of the bacterial cell…

A: As statement states that the galactose used for making the component of bacterial cell wall in the…

Q: In prokaryotes, the sigma factor recognizes base sequences in the _____ which facilitates RNA…

A: Prokaryotes are unicellular organisms that lack a true nucleus. Their genetic material is not…

Q: Refer to the lac operon image above to see the available choices. Which lettered item represents the…

A: A set of genes present in E.coli. that regulates the uptake of lactose from the surrounding…

Q: Which of the following arabinose operon regulatory sites is exclusively involved in the repression…

A: Answer - Option B - ara O2

Q: ferR ferP. ferS ferI ferZ KEY: O = operator P = promoter Boxes = structural genes Arrows =…

A: An operon is the unit of bacterial gene expression and regulation. The operon contains the…

Q: If tryptophan is presence in the culture media of E.coli then _________.  the promoter will be…

A: This question is based on tryptophan operon. The trp operon is an operon-a group of genes that is…

Q: An operon that encodes enzymes that degrade ampicilin is most likely __________ . A) inducible B)…

A: Option A and B are the answer. An operon that encodes enzymes that degrade ampicilin is most likely…

Q: All the following are characteristics of inducible operons except they are normally inactive they…

A: Inducible operons are catabolic pathways as the enzymes involved in catabolism do not need to be…

Q: Outline the operon theory using the lac operon as anexample

A: Operon consists of genes placed in sequential order. Lac operon has following genes- Regulator gene…

Q: Define the following terms:a. cistronb. operonc. miRNAd. siRNAe. snoRNA

A: Molecular biology is the field of biology that studies the composition, structure, and interactions…

Q: Explain how the lac operon can be used to express a recombinant protein in an E. coli cell.

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: For an enzyme to be produced from an inducible operon, the repressor must bind to and digest the…

A: The operon is defined as a set of genes transcribed together and is regulated by one promoter. The…

Q: Complete the table below by choosing a term(s) in Column B that associates with the term in Column…

A: The repressor, LacI, binds to the operator sequence and prevents transcription of those genes unless…

Q: In eukaryotes, sequences that act as binding sites for proteins which alter the accessibility to RNA…

A: In prokaryotes, transcription and translation occur simultaneously as generation time is 20…

Q: Differentiate between inducible and repressible opero

A: An operon is a group of genes that are expressed under the same promoter.

Q: Explain how the following conditions will affect the regulation of the operon. (3 pts) Low cAMP…

A: Lac operon is a mechanism seen in the E coli that enables the proper metabolism in its body. The…

Q: consider the fec operon of Staphylococcus madeupiddis, which encodes an iron citrate uptake system.…

A:

Q: When sequencing the genome of an organism and looking for potential genes, a sequence of DNA that…

A: An open reading frame (ORF) is the reading frame that contains the sequence of DNA in the form of…

Q: An activator (protein “V” – not encoded by this operon) binds to the activating region and RNA…

A: A transcriptional activator is a protein (transcription factor) that increases gene transcription of…

Q: Under which of the following conditions will transcription of the lac operon occur?a) Lactose…

A: Introduction  All the gene expressions are under high regulation and this is necessary to avoid…

Q: On this gene map, there are sections where large chunks of the same color are present. These might…

A: The gene or genes which gets transcribed when the operator is bound are known as operons.

Q: The DNA region below includes the lac operon. Identify all parts (by letter) that encode PROTEINS? P…

A: Lac operon is a group of genes with a single promoter that encodes proteins to transport lactose to…

Q: Explain the process of attenuation in the trp operon under the following conditi (i) No tryptophan…

A: Answer

Q: A mutation at the operator site of a positive inducible operon that causes the sequence of the…

A: The majority of mutations in the operator, the repressor's binding site, result in lesser…

Q: Explain how alternate sigma factors can be used to initiate transcription of distinct sets of…

A: Answer: Introduction: Sigma factors is a bacterial transcription factors which can attach core RNA…

Q: The following represents a eukaryotic operon. a.true b.false DNA Promoter Region -35 Box -10 Box -1…

A: An operon is a functional unit of DNA comprising a collection of genes dominated by a single…

Q: Distinguish between positive and negative control. Give examples of each from the lac operon

A: Operator is a unit consisting of one or more cistrons that function coordinately under the control…

Q: In the presence of arabinose sugar and absence of glucose, which of the following conditions may be…

A: Arabinose could also be a five-carbon sugar that happens naturally and can be used as a result of…

Q: consider the fec operon of Staphylococcus madeupiddis, which encodes an iron citrate uptake system.…

A: The fec operon is responsible for regulating the expression of iron in the cytoplasm of cell.

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.