In regulations demonstrated by initiation of transcription, if lactose is abundant, lactose in this operon system is termed a. inducer b. coactivator C. corepressor d. operator

Q: If the above gene is one of the three structural genes of the lac operon that codes for the protein/…

A: The bacterium Ecoli possess a highly effective lactose Metabolism process . The lac operon is a…

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: Explain and give an example (trp operon) of how repressor operons function in prokaryotes.

A: Repressor binding physically  blocks RNA polymerase from transcribing  structural genes.

Q: A mutation in the operator region of the trp operon can prevent the trp repressor from binding to…

A: Operons are the functional unit of transcription and regulation of genes in almost all bacteria and…

Q: Describe the main features of repressible operons.

A: An operon is defined as a particular set of genes present on a DNA that operates under same…

Q: The only way that information is extracted out of DNA is through the transcription of MRNAS that…

A: According to our guideline we can answer only the first question. So upload the second question…

Q: Explain, with diagrams, how transcriptionattenuation works in the trp operon.

A: Atteunation is a mechanism of control in some bacterial operons which results in premature…

Q: Operons can not be:   a. Negatively regulated b. Positively regulated c. Constitutive d. Inducible…

A: The workhorses of a body are proteins. All or every function of the body are carried out by the…

Q: Compare and contrast the roles of a corepressor and an inducer innegative regulation of an operon.

A: Gene regulation is the process through which the cells control the expression of genes. It controls…

Q: Explain how the lac operon exerts positive regulation.

A: operons are gene regulatory elements found in prokaryotes . these are set of genes which are…

Q: A mutation at the operator prevents the regulator protein from binding. What effect will this…

A: An operon includes a group of genes that have a common promoter, regulator, and would be transcribes…

Q: If lactose isn't present in the environment of an E. coli, what is the state of the lac operon? O a.…

A: The lactose operon (also known as the lac operon) is a group of genes present in E. coli and other…

Q: Define the following terms: a. promoter b. consensus sequence c. operon d. chromatin-remodeling…

A: Molecular Biology is the broad term under which all these above-mentioned terms are discussed.…

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 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: compare and contrast the regulation of the lac operon and the trp operon.

A: Prokaryotic organisms consists of two different types of operons that are important in the…

Q: Define and describe the roles of the following in transcription: a. transcription factors b. RNA…

A: Transcription is the process where the information in a DNA strand is copied and interpreted into a…

Q: A mutation that inactivates transcription and translation from the regulatory gene of an inducible…

A: An operon is a functional unit of genomic DNA that comprises a collection of genes that are all…

Q: If CAP is bound to the Promoter of the Lac Operon and the repressor protein is not bound to the…

A: Operon is the prokaryotic gene regulatory system that controls the expression of polycistronic mRNA.…

Q: Explain the structure of Lac operon in bacteria.

A: Lactose is a beta-galactoside that E.coli use for energy and as a carbon source after it is broken…

Q: Explain the role of CAP and cAMP in the regulation of the lac-operon

A: Lac operon is the gene regulation system for lactose uptake and breakdown.

Q: Provide the SIGNIFICANT differences between the following

A: The process by which a cell regulates the conversion of DNA to RNA (transcription) and hence…

Q: Which statement about the transcription attenuation mechanism is TRUE? 1.In some operons (e.g., the…

A: Transcriptional attenuation is a regulatory mechanism that causes premature termination 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: Draw a schematic diagram showing the components involved in the regulation of the tryptophan operon.

A: The trp operon is regulated by the trp repressor. When bound to tryptophan, the trp repressor blocks…

Q: Which of the following environmental conditions would be MOST likely to result in transcription of…

A: The transcription of the lac Oberon in an E.colicell is high levels of lactose and high levels of…

Q: The DNA sequence before the protein coding region that determines when a gene is used is called the…

A: DNA is the genetic material of many organisms including the humans. The DNA contains information…

Q: When iron is scarce, some bacteria can stop synthesis of all enzymes that require iron (Fe3+), such…

A: Introduction  Bacteria are single-celled microorganisms that are found almost everywhere on Earth.…

Q: In how many different ways is the regulation of the Trp operon?

A: An Operon is a region in a DNA that is required for the regulation of gene expression in…

Q: Provide the SIGNIFICANT differences between the following: 1. Operon Systems Inducer/Lac…

A: An operon is a cluster of functional genes which are regulated by the common operator. Operons…

Q: the lac operon, the lac genes are transcribed in the presence of lactose because   a RNA polymerase…

A: Reasons:  A.RNA polymerase binds to the operator RNA polymerase binds to the promoter region with…

Q: Describe the advantages and disadvantages for organisms that arrange genes in operons.

A: Operons are regions of DNA that contain clusters of related genes and are made up of promoter…

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.