Match the sequence to its function.                                                                        Promoter                                                                        Start codon                                                                        Regulatory gene                                                                        Operator                                                                        Structural gene A. Encodes protein controlled by operon B. Encodes repressor C. Binding site for repressor D. Binding site for RNA polymerase E. Binding site for ribosomes

Q: Match the key complex or product to its related process of regulating gene expresSion. a.…

A: Operon is a functional unit of DNA. It contains a cluster of genes transcribed in mRNA and…

Q: Although the specific mechanism of RNA interference has not been fully defined, it involves A. the…

A: The RNA interference works at the post transcriptional level because it occurs after the synthesis…

Q: components of an operon into the appropriate order

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

Q: A newly synthesized drug is able to inhibit growth of pathogens by inhibiting a genetic process of…

A: Introduction Prokaryotes and Eukaryotic molecular mechanism is quite different. There is difference…

Q: What happens when EF-Tu is mutated A. Be involved in transcription instead of translation B.…

A:

Q: Which of the following mechanisms may create multiple mRNAsfrom the same gene?a. posttranslational…

A: Introduction  A genome is consisting of transcriptionally active genes. These genes form mRNA as…

Q: Sigma factors: O Are used to express only housekeeping genes in bacteria O Are used by bacteria to…

A: The production of RNA from the DNA template is known as gene expression or transcription that occurs…

Q: the trp operon is an example of… ? enzyme repression enzyme induction  catabolite repression

A: A primary difference between repressible and inducible systems is the result that occurs when the…

Q: The TATA box is located at which region of the promoter? O Position 0 O Position -35 O Position -10…

A: A TATA box is a DNA sequence that tells how to read and decode a genetic sequence. It's a form of…

Q: The RNA-induced silencing complex (RISC) _____ i. Binds to and unwinds ds siRNA/miRNA to produce…

A: The answet is b. II only RNA-induced silencing complex(RISC) is a multiprotein complex which…

Q: Within a promoter, a transcriptional start site isa. located at the –35 sequence and is recognized…

A: In this question we discuss gene transcription in prokaryotes. Gene transcription in prokaryotes is…

Q: Draw primary RNA transcript and mRNA. label any modifications that have been made in the structure,…

A: The given sequence is of the dna.this is the coding strand of the template and this consist of…

Q: Select one or more: O a. by the interaction of Rho and Rho binding sites in RNA. O b. by the…

A: Transcription is the process of making mRNA from DNA.it is always in the 5' to 3' direction.

Q: An operon a. is regulated by a repressor binding at the promoter. b. has structural genes that are…

A: When the RNA polymerase binds to the promoter, the operon is transcribed and some mRNAs are…

Q: Which of the following is least related to the other items? Group of answer choices inducer…

A: 1) Inducer regulate gene expression. It activate transcription of a gene by inactivating repressor.…

Q: Which of the following statements correctly describes promoters in E. coli a.A promoter may be…

A: A promoter is a short region of DNA upstream of the start site of a gene at which the RNA Polymerase…

Q: Which of the following statements about the tryptophan operon in E. coli is TRUE?

A: Bacteria, for example, Escherichia coli need amino acids to endure or survive they have to assemble…

Q: A down promoter mutation causes the promoter of a gene to be_______ like the consensus sequence and…

A: For gene expression, the promoter is the most essential element, since it is the DNA…

Q: 10. Modify the diagrams below to reflect the activation and repression of lac operon. Use arrows,…

A: The prokaryotic gene regulatory system is known as operon system in which the expression of…

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

A: Answer - Option E - CAP protein

Q: . Which of the following is an example of post-transcriptional gene repression?a. The amount of RNA…

A: Post-transcriptional gene repression means the expression of the gene in the form of protein is…

Q: The T7 RNA polymerase has been used for production of recombinant proteins in E. coli cells. This is…

A: Question - The T7 RNA polymerase has been used for production of recombinant proteins in E. coli…

Q: The gad operon is controlled by a number of transcription factors that regulate a promoter of…

A: Bacteria re found in prokaryotes. They are more primitive as compared to eukaryotes.

Q: A mutation in the lac I gene that prevents production of the lac repressor choose an answer below:…

A: lac operon also known as lactose operon was discovered by F. Jacob and J. Monod, for that, they…

Q: Transcription starts at the start codon. Group of answer choices A.True B.False   The lac operon…

A: Transcription- it is the process in which a particular segment of DNA is copied into RNA by the…

Q: When does the trp operon allow its gene to be read? * when tryptophan is not present when lactose is…

A: Gene regulation is an important phenomenon among the prokaryotic cell as well as among the…

Q: 55 __________________ assemble to form a spliceosome, the splicing machine that excises introns. A.…

A: Introduction Transcription is a process where mRNA is produced from DNA. After transcription mRNA…

Q: The RNA-induced silencing complex (RISC) I. binds to and unwinds ds siRNA/MIRNA to produce ss…

A:

Q: 1. Predict the effect of each situation on the Lac or Trp operon. Lac operon is ON Lac operon is OFF…

A: Operon is the group of genes that are expressed under the same regulatory sequences.

Q: Which of the following is true regarding General transcription factors? a. Act at every gene for a…

A: Transcription factors are proteins which binds to DNA, resulting in regulation of gene expression…

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: In a bacterial operon, the active repressor bind to the   A. promoter.   B. terminator.   C.…

A: The operon concept can be defined as a DNA containing a set of genes that are transcribed basically…

Q: Compare and contrast the activities of an activator protein anda repressor protein.

A: Gene regulation is a mechanism by which cells increase or decrease the productivity of any specific…

Q: Histone deacetylase (HDAC) enzymes   a.Promote initiation of translation. b.Complex with…

A: DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which…

Q: Which of the following is true about operons?   A. Contains a cluster of genes transcribed as…

A: An operon is a functional unit of transcription and genetic regulation, which occur primarily in…

Q: Nascent form of the mRNA  A. undergoes splicing only after capping B. is also called hnRNA C. is…

A: A. undergoes splicing only after capping B. is also called hnRNA D. participates in the spliceosome…

Q: Protein Z in the figure below depicts the activity of which bacterial Nucleoid Associated Protein…

A: The genetic material in bacteria is DNA. To fit the bacterial chromosome inside the tiny bacterial…

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: a. What is grey donut shaped object supposed to represent? b. Label with the word "promoter" where…

A: Transcription is the first step of the central dogma, it is a process where an RNA transcript is…

Q: Cells can control or regulate the amount of a particular proteins that is produced by using small…

A: RNAi (ribonucleic acid interference) is also known as gene silencing. It is a biological process…

Q: In terms of gene expression, the regulation of lac operon is an example of? A.…

A: In bacteria, an operon is a collection of genes that are transcribed as a single mRNA molecule by a…

Q: onsidering the 7 levels of gene regulation, which of the following mechanisms acts at first level?…

A: Gene expression is a tedious process involving several steps such as replication, transcription and…

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: Promoters are DNA sequences a. near a transcription start site b. bound to a repressor protein c.…

A: it is related to molecular biology.

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.