Q: Why did RNA silencing develop?
A: RNA silencing or RNA interference is a process of post-transcriptional gene regulation. It is a…
Q: What kind of changes Transcription Requires in Chromatin Structure and Nucleosome Position?
A: Transcription is the process of the formation of an RNA strand complementary to the DNA strand that…
Q: Why are some chromosomal regions amplified/deleted in a specific manner in certain tumor types?
A: Chromosomal amplification: Chromosomal amplification can be explained as the increase in the amount…
Q: What three molecular mechanisms alter chromatin structure and are responsible for many epigenetic…
A: Step 1- A gene is the essential physical and useful unit of heredity. Genes are comprised of DNA…
Q: How epigenetic modifications alter chromatin structure ?
A: Epigenetics is often connected with alteration to chromatin structure. It is studied under the…
Q: During S phase, how are histonesand their modifying enzymescontrolled to replicate…
A: Cells reproduce by a cycle of growing and dividing called a cell cycle. The cell cycle is the…
Q: Where are DNase I hypersensitivity sites found, and what do they indicate about the nature of…
A: Deoxy ribonucleic acid (DNA) is the genetic material of most organisms that carry coded genetic…
Q: is the p53 protein an activator or a repressor? How do you know?
A: p53 protein is protein which is coded by Tp53 gene which is also known by the name Gaurdian of the…
Q: What are processed pseudogenes?
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: Define the Chromatin Remodeling ?
A: Genes are the hereditary unit of an organism. The genes have DNA (deoxyribonucleic acid) which code…
Q: Define about Chromatin Remodeling ?
A: The DNA is packed into the nucleus by using the protein. The chromatin is a DNA- protein complex.…
Q: What eukaryotic process requires chromatin remodeling?
A: Chromatin remodeling is the chromatin rearrangement from a condensed condition to a…
Q: Explain the chromatin remodeling complexes ?
A: In eukaryotes, the DNA is firmly twisted and tightly coiled into a complex called Chromatin. This…
Q: What types of genes are transcribed by RNA polymerases I, II, and III?
A: BASIC INFORMATION RNA POLYMERASE It is a type of enzyme which has a function to copy the sequences…
Q: what is Cytokinesis?
A: Cell division is a fundamental process that occurs in every living individual. In this process, a…
Q: What do you mean by Chromatin Immunoprecipitation?
A: Chromatin immunoprecipitation is an experimental technique used to investigate protein DNA…
Q: What is the denaturation process?
A: There are many different types of molecules present in our bodies. They include proteins, sugars,…
Q: Explain the channels of the interchromatin compartments ?
A: The nucleus is the most important organelle present in the eukaryotic cells and is made up of a…
Q: What is chromatin remodeling complex?
A: The complex of proteins and DNA in eukaryotic cells is called chromatin. This is the packed or…
Q: What are chromatin remodeling complexes?
A: Deoxyribonucleic acid or DNA is a double helix nucleic acid structure that carries the genetic…
Q: Is heterochromatin transcriptionally active?
A: Deoxyribonucleic acid (DNA) is the genetic material made up of nitrogenous bases, pentose sugars,…
Q: What is the purpose of heterochromatin and does heterochromatin transcribed?
A: Heterochromatin is a condensed or tightly packed form of DNA that comes in multiple varieties. These…
Q: How is chromatin immunoprecipitation used to determine the locations of histone modifications in the…
A: Histone modifications occur through post-translational modifications of residues of amino acids like…
Q: What are prophase1?
A: Meiosis is known as reductional division and involves two successive cell divisions or nuclear…
Q: What is the role of the core histones in compaction?
A: In eukaryotes, the simple basic unit of DNA packaging is the nucleosome. The nucleosome structure…
Q: Why are there so many differentchromatin remodeling complexes incells? What are their essential…
A: Chromatin remodeling is one of the most important concepts. It uses the energy from the hydrolysis…
Q: Which of the following repair mechanisms removes damaged bases in non-dividing cells?
A: Ans- Bae Excision Repair The common mechanism of DNA repair System is- Base Excision Repair (BER)–…
Q: How the process of chromatin condensation is performed?
A: As we understand, the cell DNA is never exposed and unaccompanied by different proteins. Maybe, it…
Q: How are Okazaki fragments and DNA ligase used by the cell?
A: DNA replication is the process by which the new DNA molecules are being formed.
Q: Is chromatin structure is altered in transcription?
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: What is allosteric repressor ?
A: Biology terms are fundamental concepts and terms used in biology, which is the study of life and…
Q: What is the rationale for synthesizing and rapidly degrading p53 protein in the cell?
A: P53 is a nuclear transcription factor with pro apoptotic function as 50% of human Kansas carries…
Q: What is the function of FAD/FADH2 in cells?
A: Flavine adenine dinucleotide (FAD): FAD is derived from vitamin B12. It is a two-electron oxidizing…
Q: How might overexpression of proto-oncogenes lead to abnormal cellular proliferation?
A: A proto-oncogene is a cell's normal gene. Proto-oncogenes are plentiful. Each one is in charge of…
Q: Why is chromatin packaging important?
A: Chromatin is a material that makes up the chromosomes consisting of DNA and proteins. DNA is the…
Q: What is a lysogen and what is a prophage?
A: Bacterias are single-celled organisms with a cosmopolitan distribution. The bacteriophage on the…
Q: What are epigenetic marks? Which are associated withheterochromatin? How are epigenetic marks…
A: DNA/RNA is the genetic material of organisms. This genetic material is in charge of character…
Q: What are the Scope of heterochromatin effects?
A: Heterochromatin is characterized based on its dense appearance in histology. Heterochromatin is a…
Q: What is constitutive heterochromatin?
A: Heterochromatin is a condensed or tightly packed DNA. It is categorized by intense strain when…
Q: Which DNA-damage repair pathway uses the BRCA1 and BRCA2 proteins?
A: BRCA1 and BRCA2 are genes that encode tumor suppressor proteins. Whenever a DNA is damaged these…
Q: Histones are made of which structures?
A: The genetic material DNA is found in all organisms and it is found in the nucleolus of the nucleus.…
Q: What are induced pluripotent stem cells? How are they derived from adult somatic cells?
A: Pluripotent stem cells are those cells that have the ability to renew themselves by dividing and…
What is chromatin immunoprecipitation?
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- Are hematopoietic stem cells unipotent, multipotent, or pluripotent?Why is p53 considered a tumor suppressor protein? Question 12 options: a) Because p53 normally detects breaks in DNA. b) Because p53 normally causes progression from G1 to S phase to halt until damaged DNA is fully repaired. c) Because p53 normally repairs breaks in DNA. d) Because p53 normally stimulates transcription of Repair Polymerase. e) Because p53 normally reduces the mutation rate of DNA polymerase.What is fadh2?
- How could premature separation of centromeres cause the problems seen in RBS?IS Ki-67 protein is a cellular marker for proliferation, and during interphase, it can be exclusively detected by immunohistochemistry within the cytoplasm, but it is absent in quiescent cells (G0) ?Part A and B A. What is the normal function of the Rb protein? A) Rb prevents the cell cycle from proceeding unless the cell is prepared to do so B) Rb causes cells to undergo apoptosis C) Rb promotes Cdk activation D) Each of the other selections is true E) Rb repairs damaged DNA B. How do tumors arise? A) When cell proliferation occurs at a higher rate than cell death B) When someone is infected with a tumor from another person C) When cell death occurs at a very high rate D) When cell proliferation occurs at a very low rate