Gene B has a mutation in its promoter sequences changing TATA to GAGA. What will this mean for transcription and why?

Q: Briefly describe how transcription works and show that you understand the difference between…

A: Transcription is the process of formation of a sequence of RNA using DNA as a template and DNA…

Q: What will result from the binding of a transcription factor to an enhancer region? a. decreased…

A: Introduction: To initiate transcription in the eukaryotic cell, RNA polymerase should bind to the…

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: A mutation within a gene sequence changes the start codon to a stop codon. How will this mutation…

A: Mutations are changes that occurs in the deoxyribonucleic acid (DNA) sequence, either due to…

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: What basal transcription factor unwinds the DNA during transcription initiation? Aside from…

A: Basal transcription factor is that protein which bind to a DNA sequence which helps in initiation of…

Q: egulatory proteins in Prokaryotes shut off transcription by binding to a site immediately in front…

A: In the given question options are given in accordance to regulation of transcription in prokaryotic…

Q: The promoter for the above transcription unit is located on the

A: A promoter is a region of DNA where RNA polymerase ties to start transcription. A terminator is a…

Q: Which statement is correct about expression of a gene regulated by Gal4? O Galactose increases gene…

A: In yeast the transcriptional activator GAL4 binds to the upstream activating sequence of the gal…

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: What is the function of each of the following gene transcription elements? Positive transcription…

A: Transcription is a process by which RNA is synthesized with the help of DNA. This is an important…

Q: If the two trp codons in the leader sequence were mutated to stop codons, what effect would it have…

A: DNA is the preferred carrier of genetic information in most living organisms except for certain RA…

Q: An activated eukaryotic transcription factor looks for specific:

A: Transcription is the process by which DNA is used as a template to synthesize an RNA sequence.…

Q: How is transcription directly controlled in eukaryotic cells? a. through the use of phosphorylation…

A: Transcription refers to a process that transcribes the DNA molecule into a molecule called RNA which…

Q: What is a promoter? Is it located at the upstream ordownstream end of a transcription unit?

A: The strand which is from 5'-3' is the non-template strand and the strand which runs from 3'-5' is…

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: The Lac operon is a common example of prokaryotic control of gene expression. In what condition is…

A: Lac operon consists of structural genes such as lacZ, lacY, and lacA which are responsible for the…

Q: Which of the following is true of CpG islands? a. They are methylated near promoters of actively…

A: Deoxyribonucleic acid is a molecule composed of two polynucleotide chains. It coils around each…

Q: Gene expression regulation by methylation of the cytosines in a promoter would be considered

A: Answer - Option B - Transcriptional regulation

Q: The functioning of enhancers is an example of(A) a eukaryotic equivalent of prokaryotic promoter…

A: Enhancer refers to a short region of DNA. It increases the process of transcription of a particular…

Q: Which one is not a part of the transcription unit? a) RNA primase b) Promoter c) RNA coding sequence…

A: Deoxyribonucleic acid (DNA) is a double stranded helical genetic material containing thousands of…

Q: What would you expect to happen if you mutate a transcription factor binding site in a promoter?

A: A mutation is a sudden change in the structure of DNA. If we mutate a transcription factor then it…

Q: All of the following, except one, down-regulate genes. Which is the one factor below that…

A: Introduction: Gene expression is the process through which our DNA instructions are converted into…

Q: Mutations that occur at the end of a gene may alter the sequence of the gene and prevent…

A: Transcription is one of the defined steps of gene expression and precisely refers to the formation…

Q: Explain how the interaction of RNA polymerase with the promoter woulddiffer if the figure showed…

A: Step 1 Transcription is the formation of RNA (ribonucleic acid) over the template DNA. It generates…

Q: A mutation within the promoter region can alter transcription of a gene. Describe how this can…

A: A promoter is a transcriptional unit which is located towards 5' end (upstream) of the structural…

Q: Most transcriptional activator proteins affect transcription by interacting with a. introns. b. the…

A: Most transcriptional activator proteins affect transcription by interacting with the basal…

Q: Which level of gene expression regulation is used in eukaryotes, but not bacteria? transcription…

A: Regulation refers to the controlling of the gene expression.

Q: Sometimes a transcription factor within the cytoplasm can act as an intracellular receptor for a…

A: Transcription factors are the proteins that help in recognizing the promoter region of a gene and…

Q: Which of the following gene expression regulatory mechanisms saves the most energy but takes the…

A: Gene regulation expression defines a wide range of molecular mechanisms, that are used by the cell…

Q: Which of the following is an example of post-transcriptionalcontrol of gene expression?(A) the…

A: Post-transcriptional regulation is the gene expression control at the biological process common in…

Q: Which level of gene regulation is involved when more polypeptides are synthesized from a given mRNA…

A: Transcription:  It is a process of synthesis of mRNA transcript from DNA template by the enzyme RNA…

Q: This diagram shows a double-stranded section of DNA. The arrow indicates location and strand of the…

A: Transcription is the process of formation of mRNA using DNA as template. This is possible with the…

Q: The TATA box binding protein binds to the TATA box. What is the DNA sequence of this region of the…

A: TATA box is a DNA sequence.

Q: Shown here is a DNA sequence. The promoter is highlighted in yellow and the terminator is…

A: A mutation occurs when the sequence of bases in DNA or RNA changes. Evolution requires mutations to…

Q: Which level of gene regulation is involved when alternative sigma factors change the recognition of…

A: Alternative sigma factor in association with core RNA polymerase provide a mechanism of cellular…

Q: factors in transcription process

A: The process of transcribing a piece of DNA to RNA is known as transcription. Messenger RNA is made…

Q: Why is an NFR needed at the core promoter for transcription to occur?

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

Q: Which of the following DNA elements or proteins would you expect to find only in some cells in a…

A: Enhancers are defined as cis-acting DNA sequences that can increase the transcription of genes.…

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.

Q: Name the three transcriptional modifications that happen after transcriptions. What is the purpose…

A: Newly synthesized RNA molecule is called a primary transcript. The most extensive processing of…

Q: Which DNA regulatory sequence speeds up transcription? a promoter b repressor c silencer d…

A: DNA or Deoxyribonucleic Acid is the genetic material in most higher eukaryotic organisms and some…

Q: The extent to which a given gene is transcribed depends upon (A the single transcription factor…

A: Transcription is a process where DNA converted into a mRNA. It has three step initiation, elongation…

Q: Research genetic diseases and find one that interests you. In your initial response, describe the…

A: DNA : It is the name for the molecule that carries genetic instructions in all living things.

Q: In eukaryotes, transcription factors can directly affect the ability of TFIID (TATA binding protein)…

A: A transcription factor is also known by the name of sequence-specific DNA binding factor. It is…

Q: What is meant by the term attenuation? Is it an example of gene regulation at the level of…

A: The mechanism of switching genes off or on is called gene regulation.

Q: A scientist identifies a potential transcription regulation site 300bp downstream of a gene and…

A: Introduction  Proteins are the key biomolecule in the biological system, any important physiological…

Q: In eukaryotic cells, transcription cannot begin until(A) the two DNA strands have completely…

A:

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.