Explain how the interaction of RNA polymerase with the promoter woulddiffer if the figure showed transcription initiation for bacteria

Q: If RNA is a product of transcription how is the information coded at this step?

A: According to the question, if RNA is a product of transcription then we have to describe how the…

Q: How were bacterial promoters first identified?  Discuss their placement within the gene and roles in…

A: Introduction :- The holoenzyme is a large molecular complex composed of RNA polymerase and…

Q: Explain how the trp and lac operons of prokaryotes areregulated.

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

Q: Two examples utilize RNA reverse transcription in their biology, what are they?

A: Reverse transcription is the exact opposite of the transcription. It involves the synthesis of the…

Q: Explain why an mRNA molecule can be transcribed andtranslated simultaneously in prokaryotes

A: Transcription is the process of formation of mRNA from a DNA template. Translation is the process of…

Q: During the elongation phase of transcription, how is RNA polymerase able to "read" the DNA sequence…

A: Transcription is the process by which the genetic information stored in DNA is copied into a…

Q: Describe the steps of transcription in bacteria

A: Introduction - In the nucleus, transcription occurs. To make an RNA (mRNA) molecule, it uses DNA as…

Q: Use the lac operon to describe the process of controlling transcription through operons  (structural…

A: Operons are polycistronic gene clusters that can be regulated by a promoter. It consists of a…

Q: List all the features of a mammalian promoter.

A: Promoters are located immediately upstream of the gene and are critical in determining whether…

Q: How does an activator protein help RNA polymerasebegin transcription?

A: Transcription is a process in which the nucleotide sequences of a gene are transcribed into the mRNA…

Q: Explain the single transcription factor can be both an activator and a repressor

A: Introduction  Protein is the key biomolecule in the biological system, any important physiological…

Q: Details explanation about write a short description about post transcriptional modifications ?

A: Transcription forms messenger RNA from the template DNA. This is called primary transcript. Lot of…

Q: Compare and contrast two mechanisms for transcriptional termination in bacteria.

A: The process of formation of the RNA strands from the DNA template by the action of an RNA polymerase…

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: 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: Explain how the formation of one stem–loop in the RNA canblock the formation of another.

A: Bacteria are genetically regulated by RNA, they use a ribonucleic acid sequence encoded within mRNA…

Q: List all the features of a mammalian promoter.

A: Introduction: A promoter is a sequence of DNA expected to kill a quality on or. The interaction of…

Q: Write a short description about post transcriptional modifications? proper explanation and diagram

A: Post-transcriptional modifications: The eukaryotic pre-mRNA undergoes extensive processing after…

Q: Explain how an α helix in a transcription factor protein is able to function as a recognition helix.

A: Transcription is the first step in central dogma of protein synthesis. It involves formation of…

Q: List three examples of proteins that act on nucleic acidsduring transcription

A: Three examples of proteins that act on nucleic acids during transcription are: RNA polymerase I:…

Q: Describe the promoter structure in prokaryotes and eukaryotes.

A: A gene's "promoter", which serves as a control point for controlled gene transcription, is a…

Q: Considering prokaryotes, what is another term for the template strand during transcription?

A: The transcription means the synthesis of mRNA by using DNA as a template. mRNA act as a template for…

Q: Explain how the trp operon is regulated by trp repressor and by attenuation.

A: Gene is the hereditary unit occupying a specific position in the chromosome and carries information…

Q: Explain how a gene knockdown reagent, such as RNAi or a morpholino, could interfere with expression…

A: Gene knockdown is a mechanism or technique that helps in the reduction of gene expression. It can…

Q: Once an RNA polymerase has initiated transcription, it will release the sigma factor or sigma…

A: RNA polymerase is a multi-unit enzyme that uses transcription to create RNA molecules from a DNA…

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.