• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
An Investigation into the Genomic Evolution of the Histone Gene
An Investigation into the Genomic Evolution of the Histone Gene

... conversion - have been documented to occur, and are understood in molecular detail, but their role in concerted evolution is primarily based on theoretical and/or mathematical models with limited data from actual genome sequence to support them. It is the hypothesis of this research that if unequal ...
Final exam study guide
Final exam study guide

... to produce a ball of cells (blastocyst) which can then be placed in the uterus of a surrogate. The offspring will carry the genetic information of the donor nucleus and not the surrogate. In therapeutic cloning, the goal is to produce embryonic stem cells. These cells are removed from the blastocyst ...
Cancer - TASIS IB Biology
Cancer - TASIS IB Biology

... 2.5.2: State that tumours (cancers) are the result of uncontrolled cell division, and that these can occur in any organ or tissue ...
Personal genomics as a major focus of CSAIL research
Personal genomics as a major focus of CSAIL research

... Other evidence of function  Signatures of selection (sp/pop) ...
Document
Document

... 1. Capacity to carry therapeutic genes is small 2. Infectivity limited to dividing cells 3. Inactivated by complement cascade 4. Safety ...
Gene Section ARID5B (AT rich interactive domain 5B (MRF1- like))
Gene Section ARID5B (AT rich interactive domain 5B (MRF1- like))

... may primarily function as a transcription regulator within the nucleus. ...
Ch. 7 Gene Expresion part 2
Ch. 7 Gene Expresion part 2

...  All cells in your body carry the same DNA  Some genes are transcribed by all cells, but most cells are specialized (differentiated) to use only certain genes ...
Genetics SHOW
Genetics SHOW

... separate and move to opposite ends of cell ...
genexpres
genexpres

... •A normal gene with the potential to become an oncogene is called a proto-oncogene. Proto-oncogenes usually code for proteins that stimulate cell division or affect growth-factor synthesis or function. A mutation that results in a failure to regulate the production of these proteins will result in t ...
Proto-oncogenes normally regulate cell division, but can
Proto-oncogenes normally regulate cell division, but can

... Occasionally, however, a gene mutation causes a change that increases the activity of a positive regulator. For example, a mutation that allows the Cdk gene to be activated without being partnered with cyclin could push the cell cycle past a checkpoint before all of the required conditions are met. ...
Stem Cell Sciences Ltd – Position Statements
Stem Cell Sciences Ltd – Position Statements

... SCS supports unencumbered access to human embryonic stem cells for basic and applied research by all qualified researchers, subject to appropriate regulatory clearances and bound by the appropriate legislative guidelines. We do not consider that in in vitro research using established hES cell lines ...
DNA Structure, and Function in Cells Quiz 2016 Self
DNA Structure, and Function in Cells Quiz 2016 Self

... In order to get more cells, a cell divides. DNA makes a copy of itself so each cell has all the DNA it needs. ...
Genetics 3500 winter Test ii_ansers
Genetics 3500 winter Test ii_ansers

... cell division. Binding of a growth factor to a growth factor receptor on the membrane triggers activation of RAS. In its inactive state RAS has GDP bound to it . RAS is activated when GTP is bound to RAS displacing the GDP. Activation ras then activated other proteins such as RAF leading to a signal ...
BIOD19H3 Epigenetics in Health and Disease Professor: Winter 2015
BIOD19H3 Epigenetics in Health and Disease Professor: Winter 2015

... Professor: Patrick McGowan; TA: Wilfred de Vega ...
Assignment 3 answer key
Assignment 3 answer key

... 3. Which of the following statements about eukaryotic cell division is true? a) At the end of mitosis, there will be 2 daughter cells, each with double the number of chromosomes as the parent cell. b) At the end of meiosis, there will be 2 daughter cells, each with equal number of chromosomes as the ...
Cell fusion
Cell fusion

... limited differentiation in culture (but some phenotypes available) no sex (cf. yeast) ...
The Role of HOX Genes in the Control of Osteogenesis
The Role of HOX Genes in the Control of Osteogenesis

... from euchromatin to heterochromatin, blocking the HOX gene expression [7]. The HOX network, ensures the achievement of cellspecific gene programs through the transcriptional control of the gene expression [8]. Finally, Class-I homeobox proteins, regulate the stem cells differentiation in one of appr ...
Study Guide for the Biology Midterm
Study Guide for the Biology Midterm

... 3) What are the four nucleotides? 4) What are the three structures that make up a nucleotide? 5) What is the shape of DNA? 6) Our DNA is wrapped tightly around proteins in order to form our _____________, which are shaped like X’s. 7) How many chromosomes do we have? How many of those are autosomes? ...
RNA-Seq Analysis Practicals
RNA-Seq Analysis Practicals

... Common = 300/6 = 50% in both ...
What Do Studies of Insect Polyphenisms Tell Us about
What Do Studies of Insect Polyphenisms Tell Us about

... has multiple functions; in mammals, DNA methylation in the promoter region of genes has been associated with imprinting and gene silencing [5], but in the majority of animals, including mammals, DNA methylation also occurs on gene bodies (transcription units) [6], as it does in honeybees [7]. Gene b ...
Xist - TeachLine
Xist - TeachLine

... • Option I: The mutant ES cells will fail to undergo X inactivation. • Option II: The Xchromosome bearing the Xist mutation (129) will fail to x inactivate. • Option III: The mutation will have no effect at all on Xinactivation. In activation is in CIS ...
W09micr430Lec16 - Cal State LA
W09micr430Lec16 - Cal State LA

... Spo0F has a strong similarity to the response regulators in two-component systems except it lacks an additional carboxy-terminal domain. Its function is to accept phosphate from the activating kinases for the phosphorelay and serve as a substrate for the Spo0B ...
Peer-reviewed Article PDF
Peer-reviewed Article PDF

... mammary epithelial cells [12]. Therefore, experimental evidences to this end will contribute to understand the oncogenic function of SALL4. Another question is about the relation between SALL4 and cancer stem cell. In normal cells, SALL4 is considered to be a stem cell gene [3,13,14]. In addition, s ...
Teacher - Challenger Learning Center
Teacher - Challenger Learning Center

... storm. If they receive too much radiation and a harmful mutation of a cell’s DNA occurs, they may suffer severe damage to their bodies. Certain cells in the human body are more vulnerable to radiation than others. It is very important that these cells be protected from radiation. If you ever have an ...
Leukaemia Section t(3;9)(q27;p24) Atlas of Genetics and Cytogenetics in Oncology and Haematology
Leukaemia Section t(3;9)(q27;p24) Atlas of Genetics and Cytogenetics in Oncology and Haematology

... 706 amino acids; composed of a NH2-term BTB/POZ domain (amino acids 1-130 (32-99 according to SwissProt)) which mediates homodimerization and proteinprotein interactions with other corepressors (including HDAC1 and NCOR2/SMRT) to constitute a large repressing complex, another transcription repressio ...
< 1 ... 121 122 123 124 125 126 127 128 129 ... 174 >

Epigenetics in stem-cell differentiation

Embryonic stem cells are capable of self-renewing and differentiating to the desired fate depending on its position within the body. Stem cell homeostasis is maintained through epigenetic mechanisms that are highly dynamic in regulating the chromatin structure as well as specific gene transcription programs. Epigenetics has been used to refer to changes in gene expression, which are heritable through modifications not affecting the DNA sequence.The mammalian epigenome undergoes global remodeling during early stem cell development that requires commitment of cells to be restricted to the desired lineage. There has been multiple evidence suggesting that the maintenance of the lineage commitment of stem cells are controlled by epigenetic mechanisms such as DNA methylation, histone modifications and regulation of ATP-dependent remolding of chromatin structure. Based on the histone code hypothesis, distinct covalent histone modifications can lead to functionally distinct chromatin structures that influence the fate of the cell.This regulation of chromatin through epigenetic modifications is a molecular mechanism that will determine whether the cell will continue to differentiate into the desired fate. A research study performed by Lee et al. examined the effects of epigenetic modifications on the chromatin structure and the modulation of these epigenetic markers during stem cell differentiation through in vitro differentiation of murine embryonic stem (ES) cells.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report