Why is it important for a transcription factor/activator to have a high affinity for a specific DNA sequence?

Q: How can transcription factors influence the transcription of DNA? Select all that apply.

A: Transcription factors regulate the process of transcription of genes i.e. converting of DNA to RNA,…

Q: How do most transcription factors determine which genes they act upo

A: Protein synthesis through genes occurs in two steps: The DNA sequence present in the gene is…

Q: How is the mRNA strand altered during mRNA processing (the intermediate step between transcription…

A: DNA is the genetic material of individuals which undergoes replication, then forms RNA through the…

Q: Explain three types of post-transcriptional modifications to RNA.

A: Post-transcriptional alteration or co-transcriptional adjustment is a bunch of organic cycles normal…

Q: Why is the repression of genes by DNA methylation long-term?

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: Transcriptionally active chromatin are generally found near the outer regions of the nucleus near…

A: The distribution of transcriptionally active chromatin throughout the nucleus is a complicated and…

Q: When summarizing the process of transcription in a cell as a gene is used to build a polypeptide,…

A: Introduction  A DNA fragment is copied into RNA during transcription. Messenger RNA is the term for…

Q: Describe the various post-transcriptional and post-translational modifications that occur during the…

A: Post-transcriptional modifications are those modifications that occur after the completion of…

Q: What is meant by the term transcription factor modulation? List three general ways this can occur.

A: Transcription is the first step in central dogma of protein synthesis process. The conserved part in…

Q: What is Post-Transcriptional Control, and why is it Important? Give an example, and explain the…

A: Post-transcriptional modification refers to the processing that occurs after an RNA molecule has…

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: What are some reasons that cells regulate gene expression?

A: It means to activate the expression of a particular piece of DNA only when it is needed.

Q: control

A: Post transcriptional control is the control of gene expression at the RNA level.  It occurs once the…

Q: Explain Molecular Mechanisms of Transcription Repression and Activation.

A: MOLECULAR MECHANISM OF TRANSCRIPTION : during transcription , a DNA molecule is copied into RNA…

Q: Why is TBP considered to be a universal transcription factor?

A: The TATA-binding protein is a general transcription factor that binds specifically to a DNA sequence…

Q: How does Transcription Factor IIH trigger the initiation of transcription?

A: Transcription is a process in which RNA is formed with the help of RNA polymerase enzyme which…

Q: During the process of transcription, a nucleotide was deleted from an mRNA sequence that coded for a…

A: In the DNA sequence of an individual, a mutation is a heritable alteration. Compared to the wild…

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: Define transcription unit.

A: Transcription unit is a stretch of DNA that encodes a single RNA molecule and other sequences…

Q: If a repressor prevents TFIID from binding to the TATA box, why does this inhibit transcription?

A: TFIID - It is an important transcription factor, which plays a key role in the activity of RNA…

Q: A transcriptional activator protein regulates gene expression in a) cisb) trans

A: The objective of the question is to understand how a transcriptional activator protein regulates…

Q: Compare the roles of general and specific transcriptionfactors in regulating gene expression.

A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…

Q: Which statement is false: A) Each type of protein ( ex: hemoglobin vs trypsionngen) varies in the…

A: Gene is a sequence of nucleotides that encode a particular protein. The transcription and…

Q: Why transcription initiation requires the assembly of transcription regulatory proteins on DNA sites…

A: Transcription is the process by which an RNA is made from a segment of DNA. Transcription starts at…

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: What is the difference in how mediator works with activation vs. repression of transcription?

A: Transcription refers to the mechanism in which the genetic information in DNA is transferred by RNA…

Q: Describe the structural features of transcription activator and repressor proteins.

A: The process of transcription is considered a crucial process for the formation of proteins in a…

Q: ATM is a kinase that phosphorylates histone H2AX in response to double-stranded DNA breaks. Which of…

A: ATM (Ataxia Telangiectasia Mutated) is a protein kinase that plays a critical role in the cellular…

Q: What enzyme has to bind to DNA for transcription to begin

A: Introduction Transcription is the process of transcribing data from a DNA strand into a brand-new…

Q: A TATA box is a short, A-T rich sequence of nucleotides located just upstream of genes and is used…

A: Transcription refers to a process in which RNA is synthesized from DNA template. Only one DNA…

Q: Hemophilia in the Russian royal family was caused by defective protein involved in blood clotting…

A: Hemophilia -- It occurs in about 1 of every 5000 males .     Usually a inherited disorder in which…

Q: Explain the binding of transcription regulatory proteins to DNA ?

A: Transcriprion regulation is accompanied by gene regulatory proteins which bind with regulatory…

Q: Define the Mechanisms of Transcription Repression ?

A: The central dogma of molecular biology describes the flow of genetic information in cells from DNA…

Q: Which type of transcriptional regulation is depicted?

A: Transception is a process in which RNA is synthesized with the help of template strand of DNA. The…

Q: Describe how a regulatory transcription factor binds to a regulatory element.

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

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.