Our blogs and videos choice: dna

Forensic Serology Information Page

What is Forensic Serology?According to forensic serologist Marcella Jones of www.ForensicMentor.com, forensic serology is the analysis of body fluids as they relate to forensic cases, including DNA analysis. Accordingly, the role of the forensic serologist involves:Examining evidence for the presence of body fluids e.g. blood, semen, hair, tissue, saliva, feces, and urineEvaluating evidence for potential DNA analysisEvaluating species of body fluidsPerform PCR (polymerase chain reaction) based typing of STR (short tandem repeat sequences) of genomic DNA, or mitochondrial sequence analysis of [more...]

Date: 2010-02-04 08:00:00

Blog posts (174) | Videos (16)
 


Natural Diet and Lifestyle Reverse the Effects of Aging | Health News

While DNA and genetics play a minor role, poor diet and lifestyle directly contribute to the leading causes of mortality, coronary artery disease, cancer, stroke, and dementia. Fortunately we can steer our destiny toward optimal health even after years of dietary and lifestyle abuse by addressing each identified aging factor. Neutralizing the Effects of Free Radicals Free radicals are unstable electrons produced during the normal course of metabolism, causing damage to the delicate cell nucleus and mitochondria. Free radicals can wreak havoc with DNA, altering its structure and causing [more...]

Date: 2010-10-12 07:34:49


Evolution News & Views: Intelligent Design and the Death of the ...

For instance, in a recent issue of the Journal of Theoretical Biology, John Bodnar describes how "non-coding DNA in eukaryotic genomes encodes a language which programs organismal growth and development." Design encourages scientists to look for function where evolution discourages it. (William Dembski, "Intelligent Science and Design," First Things, Vol. 86:21-27 (October 1998))In 2002, Dr. Richard Sternberg surveyed the literature and found extensive evidence for function of certain types of junk-DNA and argued that "neo-Darwinian 'narratives' have been the primary obstacle to elucidating [more...]

Date: 2007-06-15 23:03:39


Evolution News & Views: Does Darrel Falk's Junk DNA Argument for ...

Dr. Falk appears to be too hasty in his assumption that pseudogenes have "no function" and thereby show evidence for common ancestry. The bottom line is that the "junk" or "gibberish" DNA paradigm is being consistently overturned as time goes on, and we now know that the vast majority of our DNA has function. As one news article said when reporting on the results of the ENCODE project in 2007: The findings, from a project involving hundreds of scientists in 11 countries and detailed in 29 papers being published today, confirm growing suspicions that the stretches of 'junk DNA' flanking [more...]

Date: 2010-03-23 19:00:45


Novel Protein Critical for Cellular Proliferation Discovered ...

In addition to its role in DNA replication, ORC is also involved in gene silencing and organization of the tightly packed DNA, called heterochromatin. How ORC is brought to the DNA in human cells had previously remained a mystery. Researchers at the University of Illinois, led by Professor Supriya Prasanth from the school of molecular and cellular biology, have identified a novel protein that is highly conserved in higher eukaryotes. They have shown that in human cells, this protein (once known as LRWD1 but renamed ORCA, for "ORC-associated" protein) associates with ORC and shows similar cell [more...]

Date: 2010-10-09 07:41:33


Tech Support Scientist,Bioinformatics (West,Central or Eastern ...

This role will be responsible for troubleshooting PacBio SMRT™ DNA sequencing data employing skills in bioinformatics, data analysis, biological insight and software engineering. • Provide timely technical and application assistance in response to customer inquires. • Resolve bioinformatics issues escalated from Field Applications Specialists or customers. Issues will be received via phone, email, Web and Live Chat. • Contribute to the ongoing development of our product Knowledge Base to capture lessons learned and solutions to cases. • Collaborate with Product Marketing, [more...]

Date: 2010-08-27 16:37:28


New Repair Mechanism Has Been Discovered by Researchers « New ...

In 1953, the molecular structure of DNA was discovered by Watson and Francis Crick. Since then, one of the most amazing discoveries in genetic research has been the multitudes of protein machines that repair DNA. Recently, a “fundamentally new” DNA repair mechanism was discovered by researchers at Vanderbilt University!  Science Daily describes it this way, “Tucked within its double-helix structure, DNA contains the chemical blueprint that guides all the processes that take place within the cell and are essential for life.  Therefore, repairing damage and maintaining the integrity of [more...]

Date: 2010-10-13 08:16:14


Bioinformatics Programmers Require For Scigenom Labs Pvt Ltd /M.Sc ...

We conduct research work aimed at understanding the role of DNA sequence variation in human health and disease. Our state of the art DNA sequencing laboratory providing Sanger sequencing, analysis and genotyping service to research institutions, investigators and laboratories worldwide. Name of the Position : Bioinformatics Programmers Number of Opening : one Name of the Institute : Scigenom Labs Pvt Ltd Functional Area :Application Programming, Maintenance Experience: 1 - 5 Years Location:Ernakulam / Kochi/ Cochin Desired Candidate Profile : The person in this position should have good [more...]

Date: 2010-08-31 18:47:29


How Can Diet Affect Sperm Quality?

Zinc and folic acid, play a role in the synthesis of DNA and RNA. Deficiency of zinc is as a clinical symptom of reduced spermatogenesis and reduced fertility. Zinc is found in shellfish and lean meat, and folic acid in dark green leafy vegetables and fortified cereals What dietary factors reduce sperm quality? Along with diet, some other factors in the lifestyle of the man may be responsible for infertility. Obesity: The increased body fat binds free testosterone in the blood, and probably favors the conversion of testosterone to female hormone estrogen. Inspect and maintain your weight in a [more...]

Date: 2010-10-11 04:51:49


National Museum Exhibit

The El Paso Division has consulted with and received contributions from the Nuclear DNA Unit, the Mitochondrial DNA Unit, the Federal DNA Database Unit and CODIS from the Laboratory Division at FBI Headquarters. In addition, the El Paso ERT has provided a case study to include the murder of Sophia Martinez and with the assistance of KFOX News, was able to provide a local news broadcast that aired during the initial stages of the investigation. Participants will be able to identify items in a crime scene that can be used for potential DNA exploitation. In addition, the El Paso ERT has loaned [more...]

Date: 2010-10-08 18:52:00


Association between the Herpes Simplex Virus-1 DNA Polymerase and ...

Moreover, UL30, in conjunction with the viral uracil DNA glycosylase (UL2), cellular apurinic/apyrimidinic endonuclease, and DNA ligase IIIα-XRCC1, performs uracil-initiated base excision repair. Base excision repair is required to maintain genome stability as a means to counter the accumulation of unusual bases and to protect from the loss of DNA bases. Here we show that the HSV-1 UL2 associates with the viral replisome. We identified UL2 as a protein that co-purifies with the DNA polymerase through numerous chromatographic steps, an interaction that was verified by [more...]

Date: 2010-08-27 13:40:47


Science Centric | News | Scientists uncover novel role for DNA ...

— McDonald's recalls Shrek glasses due to potential cadmium risk — The U.S. Consumer Product Safety Commission (CPSC) just announced a recall of 'Shrek Forever After 3D' Collectable Drinking… — Hogchoker - the new Internet star — A small flatfish living along the coast of North America is the new Internet star. Currently the hotness for this particular… — Cancer deaths are projected to double by 2030 — Cancer deaths are projected to double in the next two decades. A report issued by the International Agency for Research on… More Boiling point… — Fossils of earliest [more...]

Date: 2010-07-02 11:44:00


Vet forensics to curb crime – The Express Tribune

It can revolutionise the investigation system to curb crime and sought out civil disputes, he added. He was attending a national conference titled Animal Forensics: DNA fingerprinting on Tuesday, organised by the UVAS Institute of Biochemistry and Biotechnology and sponsored by the Higher Education Commission (HEC). Prof Muhammad Nawaz, the UVAS vice chancellor (VC) said that forensic science was a multidisciplinary approach used resolve disputes in civil as well as criminal litigation. He said that with the latest DNA technology, it was possible to characterise the animals at individual [more...]

Date: 2010-09-22 06:04:57


Nutrigenomics or Nutrigenetics = DNA Diet | AntiAging - AgeLESSing ...

Nutrigenomics or Nutrigenetics = DNA Diet by John on June 9, 2010 Subscribe to my RSS feed. Thanks for visiting!Nutrigenomics or Nutrigenetics Spells “Diet” with DNA Nutrigenomics or nutrigenetics is a new field of study in diet and nutrition. You might call this the DNA Diet. Studies are emerging that show the promise of nutrigenomics — the science of how your genes interact with food. At Stanford University, researchers assigned 138 overweight and obese women to either a low-fat or low-carb diet, depending on their genes. Those assigned the right diet for their genotype lost five [more...]

Date: 2010-06-09 13:19:03


TGen-Mayo Clinic study discovers role of DNA methylation in ...

Advertisers... Medical Software - EMR and Medical Billing Software Reviews EMR Consultant - Free Comparison of Hundreds of EMR products Dragon Medical - Discounts and Training on the world’s most popular Speech Recognition Software Physician Marketing - Internet marketing for physicians and doctors Discount Medical Supplies - Discount medical and office supplies Light Therapy Light Boxes - light boxes for light therapy to treat seasonal affective disorder and winter depression. Breast Cancer Treatment - Breast Cancer Treatment Medical Supplies - Medical [more...]

Date: 2010-09-30 04:00:00


Researchers identify DNA damage repair gene in Fanconi - The ...

FAN1 glommed onto sites of the DNA damage. The researchers found that when they induced a mutation in the UBZ domain of the gene, it was rendered useless, meaning its restorative ability likely lies in its capacity to interact with ubiquitinated proteins in the Fanconi anemia pathway. As predicted, the nuclease domain of FAN1 was able to cut DNA, activity that is essential repairing the broken zippers. Versions of the gene are present in distantly related organisms, from yeast to flies to humans, Smogorzewska says, suggesting a role in life’s fundamental machinery for repairing DNA. The [more...]

Date: 2010-07-20 17:15:00


DNA fingerprinting pioneer discovers role of key genetic catalyst ...

One of the key drivers of human evolution and diversity, accounting for changes that occur between different generations of people, is explained by new research published September 5 by world-renowned scientist Professor Sir Alec Jeffreys, who discovered ... Source: University of Leicester Sunday, September 5, 2010 Categories Health News Stem Cells & Cloning Genomics Technology Policy & Regulation Food & Agriculture SpaceRef Network Astrobiology Network Astrobiology Web GeneRef NASA Watch OnOrbit OnOrbit ColabSpace The Space Elevator SpaceRef SpaceRef Canada SpaceRef Store About [more...]

Date: 2010-09-05 17:18:15


PhD Student for Ecology and Ecological Epigenetics in Plants ...

Recently however, evidence is accumulating that epigenetic processes, such as DNA methylation and chromatin modification, may play an important role in the short-term adaptation of plants to rapidly changing environmentats, such as are the consequence of climate change.In a European wide project (EpiCOL), considering the role of epigenetic regulation mechanisms as an alternative means towards adaptation in plants, we work on delivering “proof of principle” for the ecological and evolutionary significance of epigenetic variation. The project is a cooperation between ecologists, [more...]

Date: 2010-10-13 03:56:15


The role of EZH2 and DNA methylation in the silencing of the ...

Conversely, downregulation of RUNX3 mRNA in the same tumours was associated with RUNX3 DNA methylation (P < 0.05). In cell lines, knockdown of EZH2 removed the repressive chromatin marks from RUNX3 but did not result in RUNX3 re-expression. However, it prevented the re-silencing of RUNX3 after the removal of demethylating agents. In conclusion, DNA methylation is primarily responsible for the transcriptional silencing of RUNX3 in CRC, but EZH2 and histone methylation are necessary for its methylation-dependent re-silencing after the removal of demethylating agents. These results would predict [more...]

Date: 2010-07-14 07:00:00


Gathering at Cal State L.A. highlights role of DNA in crime ...

LOS ANGELES - DNA can put a name to unknown rapists, crack old cases - and prove that a local photographer is a serial killer. The importance of DNA in solving cases was highlighted Wednesday at the annual DNA Awareness Educational [more...]

Date: 2010-09-16 01:17:28


Raising The Alarm When DNA Goes Bad | Discuss Cancer

Histones play a major role in assembling chromatin and keeping it together, but they don’t usually have macrodomains,” says Ladurner. “The finding is particularly relevant, because it turns out that cancer cells don’t have macroH2A1.1. The fact that one member of the rapid response team that detects DNA damage is missing could contribute to the disease.” Because macroH2A1.1 is embedded in chromatin, when it recognises PAR at DNA damage sites, it drags the complex but highly-organised tangle of chromatin with it. As a result, macroH2A1.1 condenses the chromatin environment around the [more...]

Date: 2010-10-13 07:01:14


Role of p400/mDomino in Cell-cycle Progression [Dna and Chromosomes]

DNA microarray analysis revealed that the p400/mDomino deletion from MEFs caused the impaired expression of many cell-cycle-regulatory genes, including G2/M-specific genes targeted by the transcription factors FoxM1 and c-Myc. These results indicate that p400/mDomino plays a key role in cellular proliferation by controlling the expression of cell-cycle-regulatory genes. Footnotes ↵* This work was supported in part by grants-in-aid from the Ministry of Education, Culture, Sports, Science and Technology of Japan. ↵ The on-line version of this article (available at http://www.jbc.org) [more...]

Date: 2010-09-17 13:38:21


DNA fingerprinting pioneer discovers role of key genetic catalyst ...

... by world-renowned scientist Professor Sir Alec Jeffreys, who discovered DNA fingerprinting at the University of Leicester. See the original post: DNA fingerprinting pioneer discovers role of key genetic catalyst for human [more...]

Date: 2010-09-05 11:00:00


SciWorks to Host BioTechnology Days 9/23/10 and 9/24/10

Winston-Salem, NC: The future of the Piedmont Triad resides in science education and the growth of the biotech industry. As part of the NC Science Festival and in response to the increased need for science education, SciWorks Science Center is partnering with the NC BioNetwork and Connect a Million Minds, an initiative of Time Warner Cable, to provide hands-on activities that will show how biotechnology is part of our every day lives. Also participating is the Center for Excellence in Research, Teaching and Learning (CERTL) of Wake Forest University Baptist Medical Center. Middle School [more...]

Date: 2010-09-21 12:00:00


Role of Topoisomerase IIβ in DNA Damage Response following IR and ...

The role of topoisomerase II was investigated in cell lines exposed to two DNA damaging agents, ionising radiation (IR) or etoposide, a drug which acts on topoisomerase II. The appearance and resolution of H2AX foci in murine embryonic [more...]

Date: 2010-09-27 19:49:46


Translesion Synthesis Polymerases in the Prevention and Promotion ...

These mutations are formed when residual, unrepaired DNA damage stalls progression of the replication fork during S phase. Stalled replication forks are most frequently resolved using error-free mechanisms that include homologous ..... C. W. Lawrence, P. E. M. Gibbs, R. S. Murante et al., “Roles of DNA polymerase ζ and Rev1 protein in eukaryotic mutagenesis and translesion replication,” in Proceedings of the Cold Spring Harbor Symposia on Quantitative Biology, vol. [more...]

Date: 2010-08-13 07:00:00


DNA to Identify Illegal Adoption

Prokids DNA is an initiative of the University of Granada Genetic Identification Laboratory, University of North Texas Center for Human Identification and Concuil for Justice of the Regional Government of Andalusia. The project is sponsored by BBVA, CajaGRANADA, Fundacion Botin and Life Technologies (USA). Sudoyo Herath, Deputy Director of the Eijkman LBM said the presence of archived data that globally it is expected that the activities of illegal adoption and child abduction to be traded can be prevented. Prokids DNA Project has received rave reviews from several countries, including [more...]

Date: 2010-10-09 01:00:08


Role of Nicotinamide in DNA Damage, Mutagenesis, and DNA Repair

Nicotinamide is a water-soluble amide form of niacin (nicotinic acid or vitamin B3). Both niacin and nicotinamide are widely available in plant and animal foods, and niacin can also be endogenously synthesized in the liver from dietary [more...]

Date: 2010-09-04 18:16:58


What is the role of enzymes in the DNA replication process?

C i think, I thought it could be A but the last words say from scratch but enzymes like dna polymerase require primers to start the base sequence so further bases can be read so it cant be A Know better? Leave your own answer in the comments! This entry was posted on Tuesday, October 5th, 2010 at 3:16 am and is filed under Enzymes. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own [more...]

Date: 2010-10-05 10:16:50


Structure and mechanism of human DNA polymerase eta.

Structure and mechanism of human DNA polymerase eta. Nature. 2010 Jun 24;465(7301):1044-8 Authors: Biertümpfel C, Zhao Y, Kondo Y, Ramón-Maiques S, Gregory M, Lee JY, Masutani C, Lehmann AR, Hanaoka F, Yang W The variant form of the human syndrome xeroderma pigmentosum (XPV) is caused by a deficiency in DNA polymerase eta (Poleta), a DNA polymerase that enables replication through ultraviolet-induced pyrimidine dimers. Here we report high-resolution crystal structures of human Poleta at four consecutive steps during DNA synthesis through cis-syn cyclobutane thymine dimers. Poleta acts [more...]

Date: 2010-06-26 11:02:58


Forensic DNA Analyst

Due to continued and exceptional growth a position now exists for an experienced Forensic DNA Analyst to join a leading forensic service provider in Oxford. In this role you will examine DNA mixtures as part of a criminal investigation [more...]

Date: 2010-08-23 23:00:25


Interactive Effect of Cigarette Smoking With Human 8-Oxoguanine ...

Human 8-oxoguanine DNA N-glycosylase 1 (hOGG1) plays an important role in repairing oxidative DNA damage induced by tobacco carcinogens. In this case-control study, the authors examined the interactive effect of hOGG1 gene polymorphisms [more...]

Date: 2010-09-09 05:32:47


Role of DNA methylation in multiple myeloma blood cancer identified

DNA methylation -- a modification of DNA linked to gene regulation -- is altered with increasing severity in a blood cancer called multiple myeloma, according to a new study.Read more: Yahoo! News Search Results for Multiple [more...]

Date: 2010-09-30 15:22:00


DNA fingerprinting pioneer discovers role of key genetic catalyst ...

One of the key drivers of human evolution and diversity, accounting for changes that occur between different generations of people, is explained by new research published today by world-renowned scientist Professor Sir Alec Jeffreys, [more...]

Date: 2010-09-06 07:06:03


Sonic The Hedgehog Toys » Your Inner Fish: A Journey into the 3.5 ...

The book is perhaps at its best in its discussion of the role of DNA in evolution.It is now known that it is possible to turn on a gene that is responsible for the development of an eye, for example.So you can create a fruitfly with an [more...]

Date: 2010-10-12 21:23:18


DNA Fingerprinting Pioneer Discovers Role Of Key Genetic Catalyst ...

Research by DNA fingerprinting pioneer and his team at University of Leicester defines engine for change in genetic hotspots. One of the key drivers 5 [more...]

Date: 2010-09-06 13:17:22


Scigenom.com/services/sequencing.html

Research work conducted here is aimed at understanding the role of DNA sequence variation in human health and disease.Scigenom's sequencing in India provides Sanger sequencing, analysis and genotyping service to research institutions, investigators and laboratories worldwide. [more...]

Date: 2010-09-21 10:52:32


Biomed Middle East » DNA Fingerprinting Pioneer Discovers Role Of ...

Biomed Middle East » DNA Fingerprinting Pioneer Discovers Role Of Key Genetic Catalyst For Human [more...]

Date: 2010-09-07 00:31:40


DNA fingerprinting pioneer discovers role of key genetic catalyst ...

One of the key drivers of human evolution and diversity, accounting for changes that occur between different generations of people, is explained by new research published today by world-renowned [more...]

Date: 2010-09-05 18:46:19


From DNA Radiation Damage to Cell Death: Theoretical Approaches

The agreement between model predictions and literature experimental data supports the model assumptions on the mechanisms governing chromosome aberration induction, including the fundamental role of DNA damage clustering at the nm scale [more...]

Date: 2010-09-07 07:00:00


[Dna: Replication, Repair, Recombination, and Chromosome Dynamics ...

In most cells, 100-1000 Okazaki fragments are produced for each replicative DNA polymerase present in the cell. For fast-growing cells, this necessitates rapid recycling of DNA polymerase on the lagging strand. Bacteria produce long Okazaki fragments (1-2 kb) and utilize a highly processive DNA polymerase III (pol III), which is held to DNA by a circular sliding clamp. In contrast, Okazaki fragments in eukaryotes are quite short, 100-250 bp, and thus the eukaryotic lagging strand polymerase does not require a high degree of processivity. The lagging strand polymerase in eukaryotes, polymerase [more...]

Date: 2008-10-17 07:00:00


The Emerging Role of Telomerase Reverse Transcriptase in ...

The function of TERT in mitochondria is largely unknown but the available findings point to a role in mitochondrial DNA metabolism. This paper discusses the available data on mitochondrial telomerase with particular emphasis on its [more...]

Date: 2010-08-31 07:00:00


Structural Biology of DNA Repair: Spatial Organisation of the ...

Nonhomologous end joining (NHEJ) plays a major role in double-strand break DNA repair, which involves a series of steps mediated by multiprotein complexes. A ring-shaped Ku70/Ku80 heterodimer forms first at broken DNA ends, [more...]

Date: 2010-07-02 07:00:00


13-20-33 SEEING and HEARING the BRAIN and DNA and ELECTRON SPIN 13 ...

Nueva York: Museum Exhibit Documents Latino Role in Shaping New York City over Three Centuries The history of Latinos in New York is the focus of a new exhibit at El Museo del Barrio in Spanish Harlem. The exhibition looks at the relationship between New York City and the Spanish-speaking world from 1613 to the end of World War II. We speak with Mike Wallace, a professor of history at the City University of New York and chief historian for the Nueva York exhibit. Mike Wallace is co-author of the Pulitzer Prize-winning book _Gotham: A History of New York City to 1898_. A Tale of 2 Gitmo [more...]

Date: 2010-09-15 17:34:11


Ion Torrent licences DNA Electronics technology

Your browser does not support inline frames or is currently configured not to display inline frames. Your browser does not support inline frames or is currently configured not to display inline frames. 13 August 2010 Your browser does not support inline frames or is currently configured not to display inline frames. DNA Electronics Ltd, a developer of semiconductor systems for nucleic acid detection, has signed a non-exclusive, worldwide license agreement to provide Ion Torrent, a semiconductor sequencing company, access to DNA Electronics’ intellectual property. No further details [more...]

Date: 2010-08-13 17:20:00


DNA sequencing of the Ant – Australia Video Report # 2 | DNA ...

View our step-by-step procedure for extracting DNA and sequencing the ant with Dr. Corrie Moreau in the Pritzker Laboratory at the Field Museum. This is the second installment of a three-part series of video reports document the role of ants in the rainforests of Australia and what their DNA can tell us about climate change and conservation priorities. Dr. Moreau is the Assistant Curator of Insects in the department of zoology at the Field Museum. In February to April of 2010, Dr. Moreauconducted a survey of ant diversity in the Australian Wet Tropics of Queensland. Back in the Pritzker [more...]

Date: 2010-09-30 08:50:10


DNA Sequencing Videos,Photos,Informations,Details,Collections ...

DNA sequencing is the determination of the precise sequence of nucleotides in a sample of DNA. The most popular method for doing this is called the dideoxy method or Sanger method (named after its inventor, Frederick Sanger, who was awarded the 1980 Nobel prize in chemistry for this achievment). DNA is synthesized from four deoxynucleotide triphosphates. The top formula shows one of them: deoxythymidine triphosphate (dTTP). Each new nucleotide is added to the 3′ -OH group of the last nucleotide added. Link to discussion of DNA synthesis. The dideoxy method gets its name from [more...]

Date: 2010-08-25 06:59:00


Role of Key Genetic Catalyst for Human Diversity Discovered by DNA ...

Archives October 2010 (661) September 2010 (1760) August 2010 (2425) July 2010 (2768) June 2010 (2541) May 2010 (1293) April 2010 (6) March 2010 (5) February 2010 (14) January 2010 (6) Welcome to Naughty Online, a social site for mature adults. Feel free to join the site, post a profile, leave a comment for someone of interest. If you are looking for an amazing webcam video chat experience, join us in our Webcam Chat Room [more...]

Date: 2010-09-06 17:44:47


Role of Prostanoid DP Receptor Variants in Susceptibility to ...

Plasmid DNA was purified with the Qiagen plasmid purification system. The effects of constructs (1.5 μg) bearing PTGDR haplotypic variants were studied in transiently transfected A549 cells, grown to 80 percent confluence in six-well [more...]

Date: 2004-10-21 05:00:00


Free Online Guides: New role for master regulator in cell ...

Unlike genetic changes, which involve a change or mutation in DNA sequence, epigenetic changes in the nucleus leave the DNA sequence unaltered but modify the histone proteins, which comprise the backbone of the chromosome. Histones are proteins found in the nucleus that package and order DNA into structural units. Epigentic changes alter how DNA folds in chromosomes, changing how accessible genes are to regulatory proteins and enzymes that copy genes into RNA messages."Epigenetics is the study of how factors outside of actual DNA interact with, but not alter, genes. It is turning out, through [more...]

Date: 2010-10-06 07:00:00



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