Choose the correct statements about epigenetic regulation in eukarya Group of answer choices Acetylation of histones increases transcription Methylation of DNA decreases transcription X-inativation in female mammals is accomplished through massive acetylation of the X chromosome  Methyl tags on DNA are permanent and cannot be changed.

Q: transcriptional repressor leading to decreased gene expression. a. chromatin remodelling complex…

A: Transcriptional repressors are the molecules that block/inhibit gene expression. They directly act…

Q: Epigenetic effects on gene expression may occur through covalent modifications of ________ and…

A: Epigenetic modifications are the alterations that occur in DNA and chromatin . It includes :- A )…

Q: Progesterone is a steroid hormone (also described as a ligand) that prepares the body for pregnancy.…

A: Given:  Progesterone is a steroid hormone(also described as a ligand) that prepares the body for…

Q: Ascll is an activating transcription factor containing a DNA binding domain and an activation…

A: Some transcription factors bind to a DNA promoter sequence near the transcription start site and…

Q: The lipid-soluble thyroxine hormone binds a nuclear receptor that is also a transcription factor.…

A: The cell has many ways to control the activities of specific genes and proteins according to its…

Q: 1. Epigenetic marks refer to modifications to DNA and proteins that in tum regulate gene expression.…

A: Different macromolecules are present in humans. They include carbohydrates, lipids, proteins, and…

Q: The following is true about epigenetic gene control: O epigenetic changes to the chromatin may…

A: Epigenetics is that the study of however your behaviors and surroundings will cause changes that…

Q: Lactose intolerant individuals do not produce the enzyme lactase. Studies show that the gene that…

A: Lactose sugar is obtained from milk products and milk. When people do not produce enough lactase…

Q: Which of the following is the most likely result of a mutation in the lac operator that prevents…

A: Lac operon is defined as an operon or set of genes that have a single promoter. The genes present in…

Q: statement is true. Both statements are false. 1. Epigenetics does not consider how exposure to…

A: Epigenetics is the study of how your behaviour and environment can influence how your genes…

Q: What event in eukaryotes serves as the "trigger" for entering the elongation phase of transcription…

A: Transcription occurs in the three steps—initiation, elongation, and termination. The elongation…

Q: Select the answer that correctly expresses a valid comparison between transcriptional regulation in…

A: Transcriptional regulation is far more complex in eukaryotes than in prokaryotes. Prokaryotic…

Q: Describe and give an example of each of the following levels of gene expression control in…

A: Genes are a set of nucleotides sequence that carries information to be passed on from one generation…

Q: Histone modifying enzymes can be over- or under-expressed in a variety of human diseases and…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Select the following descriptions of gene transcription regulation in eukaryotes that are…

A: * Post translational modification are covalent and enzymatic modifications of proteins that follows…

Q: What are the mechanisms in which DNA is used to generate protein.  What are the key points in the…

A: Molecular biology is the biology that deals with the structure and function of macromolecules such…

Q: Phenotypes can be controlled by many processes besides the actual genotype present.  Explain one…

A: Epigenetics is the study of heritable phenotype changes that do not involve alterations in the DNA…

Q: So the death of dolly the cloned sheep  would it have been due to the  lack of reversing epigenetic…

A: DNA methylation and histone acetylation both have roles in regulating transcription at the time of…

Q: Let’s suppose a mutation in the glucocorticoid receptor does not prevent the binding of the…

A: Glucocorticoid receptors, which are present in the cytosol, are associated with a heat shock protein…

Q: Epigenetic effects on gene expression may occur through covalent modifications of ________ and…

A: Developmental epigenetics will be divided into planned and probabilistic metamorphism. planned…

Q: Which of the following does not accurately describe eukaryotic transcriptional factors? a. Changes…

A: Introduction Transcription factors are the proteins that specifically are involved in the…

Q: TOH1 protein is typically expressed at the same level in kidney and stomach cells and is essential…

A: Microarray is used to detect the expression of thousands of genes at the same time. DNA microarrays…

Q: Which of the following is NOT a description of an epigenetic modification? -The persistence of gene…

A: ANSWER;-  Regulatory patterns that persist in the absence of the original signal. It is NOT a…

Q: Which of the following scenarios will cause the maternal X chromosome to condense into a Barr body?…

A: The following scenarios will cause the maternal X chromosome to condense into a barr body:. Option 2…

Q: Which of the following statements about sex determination in Drosophila is false?     Males…

A: Sex determination is determined by, cells from females contain two X chromosomes, and cells from…

Q: All nuclei in multicellular animals' cells have the exact identical genes. However, the sets of…

A: Genes are the fundamental factors that determine a particular character in an organism. So the study…

Q: eukaryotic cells, which of the following is typical of how transcription is regulated? Group of…

A: A regulatory gene is a gene involved in controlling expression of one or more genes . It can…

Q: What would happen to an insulator (for example, like the ICR between the Igf2 and H19 genes) if it…

A: Insulator are cis-regulatory elements. Upon binding by insulator binding proteins, they prevent…

Q: What are some approaches to gene regulation in eukaryotes discussed in class(epigenetic,

A: Regulating the rate of transcription is what gene expression regulation entails. This is the rate at…

Q: Read the statements below and choose the one statement that is true regarding DNA methylation. DNA…

A: DNA methylation is a process in which a methyl group is added to the DNA. DNA methylation do not…

Q: The use of embryonic stem cells has been proposed for replacing cells that are destroyed by disease…

A: Introduction  Life starts from a single celled-stage termed as Zygote which develop from the fusion…

Q: How would transcription be affected in eukaryotic cells  if Mediator was deleted? Group of answer…

A: Introduction: The process involving the copying of the stored information in the strand of DNA or…

Q: When environmental conditions are optimized for promoting cellular growth, which statements are…

A: Bacteriophages are viruses which infect bacteria.They are obligate intracellular viruses.They have a…

Q: Select four items that are involved in or related to transcriptional control of gene expression (in…

A: The expression of a gene is controlled by a process known as gene regulation. The process of gene…

Q: Which of the following proteins is a combinatorial transcriptional regulator in Drosophila that…

A: There are few important points : Combinatorial transcriptional regulator : It is a particular…

Q: Which of the following best explains how the prokaryotic expression of a metabolic protein can be…

A: c.Transcription factors can bind to regulatory sequences to increase RNA polymerase binding.…

Q: Eukaryotic transcriptional repressors may act by   Choose an answer below competing for a binding…

A: Eukaryotic transcriptional repressor : These are the proteins which bind to the specific sites of…

Q: Which of the following is a method through which cells can control their gene expression?…

A: Cells control gene expression to control the structure and functions which they exhibit.  There are…

Q: Positive and negative regulator proteins that bind to enhancer regions of the DNA and stimulate or…

A: DNA is the genetic material of almost all the organisms except for viruses that contain the…

Q: Refer to the following illustration to answer the question. O protein A is not made because it is…

A: There are some substances (protein, carbohydrate etc) which regulates the expression of genes. For…

Q: Social defeat is an animal model that is used to study depression. What epigenetic change happens in…

A: Depression, mood disorders, mental illness are the rising causes of significant morbidity and…

Q: Histones are: Group of answer choices Are present in eukaryotic, but not prokaryotic chromosomes…

A: Introduction: In the packaging of DNA into the cell, the histones play a critical role. They order…

Q: Gene expression in mammals can be increased by which of the following mechanisms? X-chromosome…

A: Gene expression can be defined as the process by which information from a gene is used in the…

Q: Which is the expected outcome following the deacetylation of histones?

A: Ans - a) Coiling of chromatin, preventing it from being accessed by the transcriptional machinery.…

Q: A particular gene in Drosophila shows MRNA transcript accumulation in both the anterior and…

A: In Drosophila, mRNA transcript of a gene is present both at the anterior and posterior regions of…

Q: Could anyone explain easily how the epigenetic regulation can lead to human pathology (name of…

A: Epigenetic processes lead to individual differences in appearance, physiology, cognition, and…

Q: Flowering Locus C (FLC) is a gene that is responsible for flowering in certain plants. FLC is…

A: Acetylation of histones is known to increase the expression of genes through transcription…

Q: All genes regulated by PKA contain a cis-acting DNA sequence that binds to the phosphorylated form…

A: PKA-promoted protein phosphorylation has both transcriptional and posttranscriptional results. The…

Q: A DNA mutation in which of the following part of a gene is likely to be most damaging to…

A: It is a multiple choice question.