What is the significance of a TATA box during the process of transcription? it is a sequence of DNA that provides an attachment site for just the enzyme RNA Polymerase it is a sequence of DNA that provides an attachment site for just the enzyme DNA Polymerase it is a sequence of DNA that provides an attachment site for a group of molecules called the intitiation complex it mediates the binding of repressors

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: How are the following components in the trp operon system affected by a mutation in trpC?  (trp…

A: Regulatory proteins are proteins that provide regulatory activities in processes like transcription.…

Q: e table below with the word that matches the definition in the right column. regulatory proteins…

A: Step 1 -  1- regulatory proteins that speed up transcription by helping RNA  polymerase bind to…

Q: components of an operon into the appropriate order

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

Q: Of the following choices, which would you suspect is most efficient at changing gene expression…

A: RNAi or RNA Interference: is the mechanism by which gene expression is inhibited at the translation…

Q: Escherichia coli is grown in the presence of 20 mg of glucose and 20mg of lactose as carbon sources.…

A: Diauxic growth is the two phasic growth of bacteria as two different carbon source is present. As…

Q: Researchers are designing and testing antisense drugs as therapies for a variety of diseases,…

A: An antisense drug is a medication containing part of the non-coding strand of messenger RNA, a key…

Q: The following is a difference between eukaryotic and prokaryotic gene regulation: O Only prokaryotes…

A: 1. Operons occur primarily in prokaryotes but also in some eukaryotes, Operons are very rare in…

Q: What type of genetic regulation seems to be the most similar between prokaryotes and eukaryotes?…

A: Genetic regulation is defined as the process of switching genes "ON" and "OFF" to see in a cell's…

Q: Which of the following mutations could affect the process of transcription initiation in bacteria?…

A: UP elements are DNA sequences located upstream of a promoter and associated with the RNA polymerase.…

Q: Which of the following DNA regions is NOT involved in gene expression regulation in eukaryotes?…

A: Promoter-proximal elements are the DNA sequences present in eukaryotes. These are located close to…

Q: Describe operons in your own words, as if you were explaining what an operon is to someone who knew…

A: DNA is the biomolecule which contains all biological information in an organisms . the part of the…

Q: O mediator complex O histones RNA polymerase enhancer

A: Transcription is the process by which the information of a strand on the DNA is replicated by its…

Q: Which of the following occurs once the lipid-soluble hormone diffuses across the plasma membrane…

A: Lipid-soluble hormones are hormones that can easily diffuse across cell membranes because they are…

Q: Please match the following definitions to the correct terms B-galactosidase [ Choose ] lactose…

A:

Q: How do antisense RNA molecules function to inhibit gene expression? They bind to operator sequences…

A:

Q: The chain elongation in transcription continues until a termination sequence is encountered a stop…

A: In transcription , a special sequence contains U rich sequence downstream from a stretch of…

Q: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an…

A: Transcription factors are the class of nuclear proteins that facilitate transcription. It is studied…

Q: What is the function of a promoter in gene expression?

A: Transcription is the process through which ribonucleic acid (RNA) is synthesised from DNA. The term…

Q: A cell that has a mutation that increases the catalytic rate of RNA Polymerase II will likely have…

A: A cell that has a mutation that increases the catalytic rate of RNA Polymerase II will likely have…

Q: According to the operon model, for the synthesis of an inducible enzyme to occur, the end-product…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: In transcription which subunit in bacteria is largely responsible for recognizing the promoter?

A: The process of copying the genetic sequence in DNA into mRNA. Bacterial transcription is the process…

Q: You are working in a research lab that is surveying the CFTR gene sequence in humans to identify new…

A: A synonymous mutation is mutation in the DNA sequence that leads to change in the codon for amino…

Q: Which of the following correctly states a similarity between transcription in prokaryotes and…

A: Transcription is a process of synthesizing a messenger ribonucleic acid [m-RNA] from the…

Q: Which of the following antibiotic resistance mechanisms are most likely to be encoded by a single…

A: Any substance which is produced naturally, artificially, or through a synthetic origin that kills or…

Q: In Figure 8-5, draw the “one gene” at much higher resolution with the following components: DNA, RNA…

A: A biological process in which the information present in DNA is copied to RNA (mRNA) is known as…

Q: Which of the following is/are true regarding transcription initiation in bacteria? I. TFIID will…

A: To start transcribing a gene, RNA polymerase binds to the promoter region of the gene's DNA.... The…

Q: RNA interference is a mechanism of gene silencing that is mediated by the presence of double…

A: The order of the events is as follows:   1. Double-Stranded RNA (dsRNA) is introduced into a cell…

Q: The trp operon is a repressible system because during _______ levels of tryptophan, the repressor is…

A: The trp operon is a group of genes in bacteria that are involved in the biosynthesis of the amino…

Q: You are studying the ABCD operon from a newly isolated bacterium. Which of the following would…

A: A Operon consists of segments of DNA , which carry codes for the synthesis of proteins. These genes…

Q: Which of the following statements about the attempt to express a eukaryotic gene in bacteria is…

A: The regulation of gene expression in eukaryotes occurs at several level, which is far more diverse…

Q: A protein that binds to a ribosome binding site and prevents a ribosome from recognizing a start…

A: Ribosomes are the site for protein synthesis.

Q: As diagrammed below, some amino acid biosynthetic operons have stem loop structures in the mRNA.…

A: Option A is incorrect as without the formation of heparin the process of translation can not be…

Q: An operon is a group of genes under the control of a single promoter. Match each type of operon with…

A: The Inducible operon - Under the  default conditions , the transcription is the  inhibited.it is…

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…

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.