TRUE OF FALSE: methylated chromatin is easily transcribed

Q: Which of the following functions in the regulation of gene expression?   plasmids euchromatin…

A: Gene expression in eukaryotic cells is mediated by activators and repressors of transcription as…

Q: you want to live forever and decide to make your cells telomerase active all the time. Expalin what…

A: Ageing is the degenerative process that is associated with progressive accumulation of deleterious…

Q: What does histone acetylation do?

A: Histones proteins are chemically modified during replication and transcription. Chemical…

Q: Loss of heterozygosity (LOH) means that the cell no longer has the ability to check for mistakes in…

A: Heterozygosity It refers to the state of possessing two different alleles at a specific locus. It is…

Q: Structure of a Chromosome

A: Introduction: Chromosomes are thread-like structures present inside the nucleus and they carry…

Q: When an individual has genome mutations, their chromosome structure changes. True or False.

A: Mutations are sudden heritable change in the genetic make up of an individual which alters the amino…

Q: MEthylation is usually via?

A: DNA methylation is an epigenetic change. It plays an important role in gene imprinting, X-gene…

Q: Give typing answer with explanation and conclusion What is the difference between a gene and a…

A: Genome refers to the entire genetic material of the cell which can be DNA or RNA. It may consist of…

Q: Give typing answer with explanation and conclusion  True or False   1. DNA regulates Gene Expression…

A: Note: “Since you have posted multiple questions, But as per our Q&A guidelines we can answer 1…

Q: Chromatin is OA complex of cohesin proteins O Where sister chromatids are most closely attached A…

A: Biological macromolecules are those large molecules that are necessary for the survival and growth…

Q: Replicative senescence is a process used by malignant cells to achieve immortalization by critically…

A: Replicative senescence is a natural limit for normal cells.Definition:Normal cells can only grow to…

Q: How many types of histone proteins are present in eukaryotic chromatin? 3

A: In the nucleus of eukaryotic cells, histones are highly basic proteins with a lot of lysine and…

Q: Single strand invasion is promoted by Rad51 protein in Eukaryotes for repair of Double Strand…

A: Homologous recombination is the exchange of genetic material between two strands of DNA. It occurs…

Q: Which of these statements about nucleosomes is FALSE? More than one of these answers is false all of…

A: Ans.-Nucleosomes are found in prokaryotes. This is FALSE.Nucleosomes are only found in…

Q: DNA forms a thick fiber that is formed into structural loops. This formation is associated with... O…

A: Introduction: DNA stands for the deoxyribonucleic acid. It is a biomolecule that is composed of two…

Q: To function effectively as artificial chromosomes what does YAC needed

A: Yeast artificial chromosomes (YAC) refer to artificial, genetically engineered chromosomes that are…

Q: Chromosomes core of 8 are composed of 1. forming a structure called a chromatin; DNA; histones;…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Below you will find the normal p53 gene found on chromosome 17 and a mutated version of the gene.…

A: To solve such questions, we should know the corresponding complementarity between the bases and that…

Q: Copyright 2006 Nature Publishing Group Nature Reviews | Genetics Copyright © 2006 Nature Publishing…

A: The Human body has two types of cells- somatic cells and germ cells. The somatic cells are diploid…

Q: Nitrogen mustard gas, Cisplatin and other alkylating agents cause:   Question 16 options:   double…

A: Alkylating agents are a class of chemicals that can add alkyl groups (e.g., methyl or ethyl groups)…

Q: Which of the following is a type of chromatin remodeling? the changing of amino acid sequence of…

A: The DNA double helix is firmly wrapped around nuclear proteins called histones in the cell nucleus.…

Q: For a chromosome to duplicated in a cell, there must me a region on the DNA strand called the where…

A: Replication It is process in which the existing DNA gives rise to a new DNA strand. Various…

Q: True or False. DNA is positively charged. O True False

A: DNA is positively charged False

Q: True or False? Chromatin remodeling involves addition or removal of chemical groups to histones,…

A: The dynamic change of chromatin architecture to give condensed genomic DNA access to regulatory…

Q: In nucleosomes, DNA wrapped around octamar of histone proteins O False True

A: A histone octamer is the eight protein complex found at the focal point of a nucleosome center…

Q: Match the type of chromatin with the chromosome structure or region. chromatin of telomeres v…

A: Chromosomes are thread like structure present inside the nucleus of the cell, which carries genetic…

Q: Describe in 4 steps the condensation of eukaryotic DNA to chromosomes. Describe each one briefly.…

A: In mitosis, the nuclear DNA of the cell condenses into visible chromosomes and is pulled apart by…

Q: A reciprocal translocation between chromosomes9 and __ contributes to chronic myelogenous leukemia.

A: Step 1 Introduction Translocation is a type of chromosomal aberration in which two non-homologous…

Q: Some chromatin remodeling factors use energy from ATP hydrolysis to slide nucleosomes.shifting…

A: Chromatin remodeling can significantly alter gene expression. It is studied under the domain of…

Q: In an XXYY human: two X chromosomes are inactivated in every cell one X chromosome is inactivated…

A: The correct statement for an XXYY human is:2. One X chromosome is inactivated in each somatic cell.

Q: dna stored at physiological ph is negative charge  single strand  positive charge  unchanged…

A: The DNA deoxyribonucleic acid is the genetic material in almost all organisms except in case of few…

Q: In prokaryotes the chromosome consists of a single and circular DNA with large amount of specific…

A: Prokaryotes - nucleus absent. Genetic material is present in nucleoid.

Q: utations and the effects of genetic mutation

A: Mutation can be defined as the change in the DNA sequence. The process of Mutations can result from…

Q: Reverse transcriptases are RNA-dependent DNA polymerases that use deoxyribonucleotides as…

A: Reverse transcriptase is the enzyme which is used by viruses such as HIV for the purpose to…

Q: Describe the size (in base pairs) of the bands anticipated for Digested TT DNA Digested Tt DNA…

A: Gel electrophoresis is a process of separation of DNA fragments based on their size. Different size…

Q: When does DNA replication occur in the cell cycle? Replicate this strand of DNA: ATTCGC TAG…

A: The cell cycle is a sequence of events before cell division occurs, it prepares cells for division.…

Q: DNA that is typically loosely spread out as thin threads within the nucleus is known as ________.…

A: The DNA that is typically loosely spread out as thin threads within the nucleus is known as…

Q: Hemimethylated DNA are methylated by de novo DNMT True or false

A: Enzyme DNA methyl transferase (DNMT) methylates specific sequences at CpG islands in newly…

Q: The DNA can be increased in size by only about 5%, representing the addition of only 3 kb of new…

A: Cloning vector Based on lambda bacteriophages: Two problems had to be solved before lambda based…

Q: Discuss histones and how methylation and acetylation of DNA and histones can affect the production…

A: Histone modifications are related to the structural changes that mainly happen during the time of…

Q: Which process can cause duplications? misalignment of homologous chromosomes at repetitive sequences…

A: Duplication is the formation of more than one copy of the chromosome.i-e the gene is present more…

Q: Show why acetylation of the histone prevents it from interacting with DNA.

A: Histones are a group of simple proteins that bind to DNA within the nucleus and allow it to condense…

Q: Approximately O 90 60 30 10 % of chromatin is actually composed of DNA.

A: Thread like coiled, elongated structure, present in nucleoplasm and stained with basic stain and…

Q: Which histone is present in a chromatosome? H1 H2A O H3

A: Chromatin is a macromolecular structure in eukaryotic cells that is mostly made up of DNA and…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: