Which of the following could represent an epigenetic modification in a cell?   A. Deletion of chromosome 18   B. Acetylation of histone H3   C. Deletion of a 20-nucleotide segment of chromosome 3   D. Conversion of an A to a T within a gene   E. Duplication of chromosome 13

Q: Which of the following mutations could be appropriately describedas a position effect?A. A point…

A: The mutation is caused due to alteration occurred in the gene sequence due to either environmental…

Q: a way in which proto-oncogenes can change to become genes that induce cancer?

A: A proto-oncogene is a normal gene that can turn into an oncogene due to mutations or increased…

Q: A researcher found that she could increase phosphorylation of amino acids adjacent to methylated…

A: Histone Phosphorylation It is associated with transcriptional activation.  It takes place with the…

Q: After the initial Actualization of the Cit+ phenotype, there was another alteration to the A-3…

A: Bacteria are dynamically evolving microbes. Various experiments suggest the evolution process of…

Q: For each statement below indicate whether it is true or false. A. Introns are transcribed regions…

A: A. Introns are transcribed regions that are not removed in RNA processing - false Explain - specific…

Q: What degree of differences would you expect to see in the DNA base sequences and epigenetic marks of…

A: Monozygotic twins are born due to splitting of one single fertilized egg into two embryos. They are…

Q: The key to epigenetic regulation is ________.   a. controlling accessibility to transcription…

A: Epigenetic regulation of a gene is the interaction by which the activity of a specific quality is…

Q: HDAC's are important enzymes involved in the regulation of Gene expression. This is because a. They…

A: HAT stands for Histone acetylase. HDAC stands for Histone Deacetylase.

Q: Several new cancer drugs inhibit the enzymes that either put acetyl groups on histones or take them…

A: Cancer in simple term can be referred to a set of diseases which are caused by the production of an…

Q: Which statement(s) below regarding DNA mutations is true: A. Mutations only occur in genes B.…

A: Ans: D) Mutation can occur in promoters.   Mutation is a change in the sequence of DNA due to…

Q: Of the following statements related to the function of telomeres, identify which is FALSE.   a.…

A: Telomerase is an RNA-dependent DNA polymerase that helps extend telomeres. the telomeres are the…

Q: From the list of answers below (A-D) select the correct answer(s). There may be more than one…

A: Need to find which of the statement is right from the following.

Q: Transcriptional activation of eukaryotic genes involves which of the following events? a. Changes in…

A: Nucleosome is the packaging unit in eukaryotes. It is a fundamental subunit of chromatin.…

Q: A genon wide analyst of human genome indicated that approximately 1500 genes encoded transcription…

A: Transcription factors These are proteins that are involved in the process of transcribing the…

Q: Sickle cell disease is caused by a substitution in the beta globin gene. As a result, one amino acid…

A: Normal RBC is a biconcave disc shape structure without any nucleus and have Cytoplasm that possess…

Q: You are investigating the transport of proteins into the ER in various mutant cells. Where would you…

A: Transport into the endoplasmic reticulum (ER) is the important step inside the biosynthesis of…

Q: CpG is an epigenetic term which means: Select one: a. The binding of cytosine with the following…

A: DNA is the genetic material of almost all living organisms. It is made up of monomers of…

Q: Which of the following are examples of molecular changes thatcan have an epigenetic effect on gene…

A: Epigenetic effects are such changes that bring about changes in the phenotypic expression of a gene…

Q: Would the viral insertion of a proto-oncogene into a region of genomic DNA with non-acetylated…

A: Acetylation reduces the affinity between histones and DNA by removing positive charges. Thus,…

Q: A plant geneticist was examining the inversion mutation XI 501 in barley where a segment of DNA is…

A: Any alteration occurring in the DNA sequence of an organism is known as mutation.

Q: If histones are acetylated on a lysine amino acid (an epigenomic mark), are genes in this region…

A: Epigenetics is the branch of genetics that deals with changes in gene expression (no change in the…

Q: Studies on monkeys have provided insight on the role of maternal care on the epigenome. Imagine you…

A: The study to examine the role of epigenetics in shaping animal / human behaviour is called as…

Q: What have epigenetic monozygotic twin studies proven? A. Twins have identical epigenomes because…

A: The term epigenetics means something that occurs due to a non-genetic influence on the expression of…

Q: Pax-6 is a gene that is involved in eye formation in many invertebrates, such as Drosophila. Pax-6…

A: Genes are the units of heredity, in other words, we can say genes are the short nucleotide sequences…

Q: How does chemical modification of the histones lead to changes in chromatin structure? Choose all…

A: Chromatin It refers to the complex of DNA and proteins that forms chromosomes in the nucleus of…

Q: Which of the following statements about inherited DNA repair syndromes are correct (select all that…

A: DNA repair deficiency disorder:  Generally when DNA undergoes any sort of DNA damage these damages…

Q: Categorize each of the following events as an example of genetic inheritance or epigenetic…

A: * genetic inheritance Inheritance is the process in which genetic information is passed on from…

Q: researcher has identified a mutant strain of yeast whose histones are unable to be acetylated. Which…

A: Histone acetylation and deacetylation are the processes by which the lysine residues within the…

Q: A. What is represented in green below? B. What is represented in red below? A. Histone H1, B.…

A: Introduction: The genomic DNA in eukaryotic cells must be tightly packed while still being…

Q: Which of the following statements about methylation and acetylation is correct? A. Genes that have…

A: Introduction Deacetylation is the removal of an acetyl group and occurs on a plethora of targets and…

Q: Which of the following is NOT a description of an epigenetic modification? A. regulatory patterns…

A: Changes in gene expression that are not produced by changes in DNA sequences but are caused by…

Q: Which of the following are epigenetic marks?a. Methylated basic amino acids in histone tailsb.…

A: Any changes in the DNA or its related components which effectively alter the gene expression, tunes…

Q: An epigenetic study of maternal care in mice was used to study transgenerational epigenetic…

A: Answer.) :- In the given scenario the researchers used mice to study transgenerational epigenetic…

Q: In a haploid, a nonsense suppressor su1 acts on mutation1 but not on mutation 2 or 3 of gene P. An…

A: In a procedure known as synthetic rescue, a suppressor mutation is a second mutation that alleviates…

Q: dency of tra Which of the following would you expect to find in a region of euchromatin? DA. more…

A: Euchromatin is a lightly packed form of chromatin or DNA. As it is accessible to may transcriptional…

Q: What type of mutation causes the "mutant" variety of the PTC gene?  a A point mutation which lead…

A: PTC gene: it is the premature translation-termination codon. PTC is responsible for about one third…

Q: Which of the following is true about the enzyme telomerase?   A. It is found only in adult cells.…

A: Telomeres are the ends of the linear chromosomes.

Q: Which ONE of the following is TRUE concerning the so‐called Philadelphia chromosome? Select one:…

A: Chromosomal deletion is simply deletion of the part of the chromosome. Chromosomal inversion is a…

Q: Geneticists have been exploring ways to suppress the expression of the extra chromosome 21 in…

A: Chromosomes are a compact form of DNA wrapped around some proteins and are generally present in a…

Q: Which of the following is not a major mechanism of epigenetic change? a. DNA methylation b.…

A: Deoxyribonucleic acid (DNA) is a double-stranded molecule. DNA replication is the process by which…

Q: Fruit flies with DNA transposons known as P elements are known to have 1.gene silencing factors in…

A: P elements - these are transposable elements  that were discovered in drosophilia as the causative…

Q: You are analyzing the activity of the protein p53 in two different cell types. You notice that p53…

A: The function of a protein is primarily related to its structure if the composition of protein is…

Q: What type of genetic alteration allows p53 to promote cell growth

A: The missense point mutation on exon 7 of p53 gene promote the cell growth which later leads to the…

Q: . Dosage compensation is necessary because a. some regions of the genome contain more genes than…

A: Introduction : Heterochromatin is the darkly stained part of chromatin. The heterochromatin is…