Our blogs and videos choice: dna measurement

How to grow muscles? – Muscle Growth Explanation | DNA Sequencing

But in fact, from childhood to adolescence are subjected to human healthAn increase of deoxyribonucleic acid (DNA) content of muscle tissue. Since muscle tissue contains only diploid nuclei contain a constant amount of DNA (about 6.2 picograms per nucleus). During intrauterine life, the process of cell growth (DNA and protein-DNA-growth), hyperplasia and hypertrophy occur, the. After puberty, the increase in cell size for a limited time. The increase in DNA accountsincrease in content in the nuclei of muscle fibers. The amount of DNA into muscle is a measure of the number of nuclear DNA and [more...]

Date: 2010-09-15 12:51:07

Blog posts (147) | Videos (14)

Reveo's direct DNA sequencing using tunneling microscopy « The ...

Reveo is developing an ambitious technology to stretch out and deposit taut DNA on conductive surfaces for electronic base detection using one or more STM tips and tunneling current measurements. The linearization and deposition of nucleic acid sequences will likely be done using molecular combing. Reveo’s approach requires atomically flat and positively charged substrate surfaces (e.g. self-assembled monolayers on gold substrates or treated graphite substrates). In addition to molecular combing, Reveo has proposed other methods to linearize DNA, including electrophoretic and hydrodynamic [more...]

Date: 2010-08-25 17:49:12

Gene internet sites Tied to being overweight Identified in New ...

An worldwide investigating air max 95 alleges it’s identified eighteen new air max internet sites associated with being overweight and 13 other people associated with how body fat is distributed while in the body, air max 97 that shed new soft in regards to the intricate biology necessary a specific while in the world’s most pressing public-health problems. The studies are in accordance to medical tests involving almost 250,000 people, creating the hard work the most famous so much to unravel the hereditary routine of desired individual traits, research workers said. They acquired been [more...]

Date: 2010-10-13 07:05:14

Insights into watermelon genetic diversity

Insights into watermelon genetic diversity by Jeremy on September 29, 2010 There’s no doubt that most of the time when we non-experts think of genetic diversity in DNA terms, we think about alterations in the actual DNA sequence. Change the genetic code and there’s a chance you change the nature of a gene and as a result change the outward appearance, the phenotype, of an organism. There have been lots of studies relating the differences among species to differences in the DNA code of this sort, but far fewer looking at the differences among varieties of a single species. Amnon Levi and [more...]

Date: 2010-09-29 05:55:20

What's That Mutt: A big surprise in Nanai's family tree

Canine Heritage's Web site explains that "In the Mix" breeds are ones that "that have the least amount of influence on your pet's composition, however, they still appear, at a low and measurable amount, in your pet's DNA." And in Nanai's DNA: English Coonhound and, believe it or not, Bernese Mountain Dog. The hound would explain Nanai's tracking behavior and her baying howl when left alone, and the Bernese Mountain Dog would explain her herding instinct. As for her love of water, well, apparently that's just her own personal quirk! Nanai's DNA-test results certainly prove that a dog who [more...]

Date: 2010-09-20 13:40:02

Y chromosome microdeletions, sperm DNA fragmentation and sperm ...

Y chromosome microdeletions, sperm DNA fragmentation and sperm oxidative stress as causes of recurrent spontaneous abortion of unknown etiology J. Bellver1,*, M. Meseguer1, L. Muriel2, S. García-Herrero1, M.A.M. Barreto1, A.L. Garda3, J. Remohí1, A. Pellicer1 and N. Garrido1 1Instituto Valenciano de Infertilidad (IVI), University of Valencia, Plaza de la Policía Local, 3, 46015 Valencia, Spain 2IVI Vigo, Plaza Francisco Fernández del Riego, 7, 36203 Vigo, Spain 3IVI Murcia, Navegante Macías del Poyo, 5, 30007 Murcia, Spain *Correspondence address. Tel: +34-963050900; Fax: [more...]

Date: 2010-05-25 06:43:12

Biosensors: Morpholino offers you more

A DNA microarray has tens of thousands of biosensors on its surface; each biosensor contains a short DNA fragment, known as a probe, for recognizing DNA targets. Ideally, the DNA biosensor should have high sensitivity (the ability to detect very low concentrations of targets), high specificity (the ability to distinguish the difference between similar targets) and high stability (the ability to withstand wear and tear over many cycles). Fig. 1: Scanning electron microscopy image (left) of a cluster of parallel SiNWs, and a schematic illustration (right) of the Morpholino-based sensing [more...]

Date: 2010-10-13 12:52:44

What do the bands in a DNA gel contain?

sweetgal2301 |  Thursday, 23 September 2010 at 8:18 pm They contain DNA. As a gel, an agarose medium is porous, which means … we see the agarose as a lump of gel .. in fact it is made up of clump of gel like balls attached to each other. so in between these balls there are spaces. So these bases can be used by certain molecules to move around. So when you give an electric current to negative or positive charged molecules … they can move through these pores to their opposite attracting charge. the DNA product is usually negatively charged so they will migrate from the positive end [more...]

Date: 2010-09-23 19:55:35

PLoS ONE: Evidence of Authentic DNA from Danish Viking Age ...

Linea Melchior1, Toomas Kivisild2, Niels Lynnerup3, Jørgen Dissing1*1 Research Laboratory, Institute of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark, 2 Leverhulme Center for Human Evolutionary Studies, The Henry Wellcome Building, University of Cambridge, Cambridge, United Kingdom, 3 Laboratory of Biological Anthropology, Institute of Forensic Medicine, University of Copenhagen, Copenhagen, Denmark Abstract Top Background Given the relative abundance of modern human DNA and the inherent impossibility for incontestable proof of authenticity, results obtained on ancient [more...]

Date: 2008-05-28 07:00:00

Thrombosis Journal | Full text | Effect of PlA1/A2 glycoprotein ...

Genomic DNA was prepared from peripheral lymphocytes by the salt precipitation method . The PlA1/A2 alleles of the GP IIIa gene were identified on the basis of MspI enzyme site restriction analysis after amplification of a 476 base pairs GP IIIa fragment (sens amorce 5'-ATA-AGC-TTA-GCT-ATT-GGG-AAG-TGG-TAG-GGC-CTG-3', antisens amorce 5'-CTT-CTG-ACT-CAA-GTC-CTA-ACG-3'). The GP IIIa gene was amplified using the polymerase chain reaction (PCR) method. Each amplification product was verified on an agarose gel. Amplification results in a 476 base pairs (bp) fragment. Digestion was obtained with [more...]

Date: 2008-01-15 08:00:00

Science News for Kids: Feature: Scientist Profile: Wally Gilbert

You've won a Lasker Award and a Nobel Prize for your research on sequencing DNA, basically figuring out the order of the letters in this very long word. How does that method work? Fred Sanger in England invented one method, and I invented another with my collaborator, Allan Maxam. The very first piece of DNA we deciphered was only 20 groups long. It took us two years to work out the order of those groups. A typical gene in our body is some ten thousand groups long, so you couldn't possibly work out the entire order of groups for a gene. Then suddenly we discovered a simple way of doing it. It [more...]

Date: 2010-03-31 04:00:00

Gene Sequencing: DNA analysis

Not everyone can properly and correctly analyze the DNA. Apartyears of study devoted to knowledge of DNA, DNA analysts to go through years of experience and practice in laboratories and practice of DNA testing and analysis in order to analyze the DNA and how it works. The training of DNA analysts understanding of sophisticated tools and machines developed for DNA analysis. proper management and use of these devices would make them more efficient in the pursuit of DNA to be analyzed correctly. Most of the DNA consists of 23Pairs of chromosomes, mitochondrial DNA inherited from the mother, and [more...]

Date: 2010-09-22 05:00:00

Dr. Pandey “pulls off” new DNA sequencing method

The current method to sequence DNA is called gel-electrophoresis. This process is very costly and time consuming. However, Dr. Pandey and his research team have proposed a way to make DNA sequencing far easier and cheaper than the current method. For those of you scratching your heads and wondering what the purpose of DNA sequencing could possibly be, imagine in the futurew going to the doctor and getting customized medicine just for you based on your DNA. This medicine would do exactly what it needed to in order to fix your problem because it was made specifically for you and only you. [more...]

Date: 2010-09-23 17:36:11

Mutation Rate In Humans Gets Measured By Direct Sequencing

With better measurements of mutation rates, we could improve the calibration of the evolutionary clock, or test ways to reduce mutations, for example. Even with the latest DNA sequencing technology, the researchers had to design a special strategy to search for the vanishingly rare mutations. They used next-generation sequencing to establish the order of letters on the two Y chromosomes and then compared these to the Y chromosome reference sequence. Having identified 23 candidate SNPs – or single letter changes in the DNA – they amplified the regions containing these candidates and [more...]

Date: 2009-08-27 14:01:30

Compare Autosomal DNA Tests for Genealogy and Adoption Search

Family Tree DNA plans to include a similar admixture test with Family Finder in the future.ADVANTAGE: Relative Finder 5. Health InformationAs noted before, 23andMe uses autosomal DNA testing to provide health information. It can measure your personal genetic risk for certain diseases, your status as a carrier for others, and your likely response to certain medications. It only includes those conditions with a proven genetic link. And it can’t factor in environmental factors such as your personal diet, exercise, and exposure to toxic substances. Nevertheless, the health information provided [more...]

Date: 2010-04-22 07:00:00

The effect of DNA signals on nucleosome formation, chromatin ...

Much of the human genome is non-coding and it seems likely that at least some of the non-coding DNA is functionally important. However, only little is known about the possible function of the bulk of the human genome. Since essentially all the nuclear DNA is packaged into chromatin, it is likely that functional effects of non-coding DNA are mediated by the chromatin structure. By making use of human genomic sequence information now available, we showed that a specific set of periodic DNA motifs (period-10 VWG/CWB) encoded in genomic DNA is predicted to influence human chromosome function. The [more...]

Date: 2010-08-25 23:15:17

Feedback from Interpol DNA User's Conference | DNA Project - South ...

This time last week I was sitting at the Interpol Headquarters in Lyon, France listening to the Chief of the USA FBI CODIS Unit talk about International DNA Exchange methods. This was only one of approximately 35 fascinating presentations delivered by representatives from over 50 countries. As you may well imagine, participating in a conference of this magnitude was extraordinary, and the value of being able to interact with the other representatives: priceless. A special mention of thanks needs to go to our generous sponsor, The Open Society Foundation for South Africa, which enabled us to [more...]

Date: 2010-09-29 10:51:03

Strawberry DNA Extraction | Serendip's Exchange

DNA Isolation using Strawberries (wear eye protection, or be careful).  Working in groups (for supervision), but each individual will do their own. Place 1 strawberry in the plastic bag.  Remove air and seal. Mash strawberry for 2 minutes. Add ~10 ml DNA Extraction buffer (Pre-measured).  Remove air and seal. Mash for 1 minute. Pour solution through coffee filter  into paper cup Pour ~2 ml of this solution back into the 15 ml tube.  It will be very red. Pour ~ 4 ml (2X the volume of strawberry solution) of cold ethanol (found on freeze door in 50 ml tubes) so that it lays on top of [more...]

Date: 2008-07-30 07:00:00

Predictors of global methylation levels in blood DNA of healthy ...

Background Estimates of global DNA methylation from repetitive DNA elements, such as Alu and LINE-1, have been increasingly used in epidemiological investigations because of their relative low-cost, high-throughput and quantitative results. Nevertheless, determinants of these methylation measures in healthy individuals are still largely unknown. The aim of this study was to examine whether age, gender, smoking habits, alcohol drinking and body mass index (BMI) are associated with Alu or LINE-1 methylation levels in blood leucocyte DNA of healthy individuals. Methods Individual data from five [more...]

Date: 2010-09-16 05:22:51

The Crime Report » Archive » U.S. Awards Nearly $65 Million To Cut ...

The Justice Department has awarded more than $64.8 million for the federal fiscal year that ended Oct. 1 to 115 state and local governments to help increase crime lab capacity and reduce turnaround time for examining DNA samples at laboratories across the nation. Assistant Attorney General Laurie Robinson said that between 2005 and 2008, demand for DNA testing services increased by more than 260 percent. Since 2004, the Justice Department’s National Institute of Justice has provided $330 million to reduce backlogs of DNA samples. NIJ defins a backlogged case as one not tested 30 days after [more...]

Date: 2010-10-12 12:01:31

DNA art imitates life: Construction of a nanoscale Mobius strip

The circulations of earth's warmer and cooler ocean currents for example, describe a Möbius shape. Other topological structures are common to biological systems, particularly in the case of DNA, the 3 billion chemical bases of which are packed by the chromosome inside the cell, using topological structures. "In bacteria, plasmid DNA is wound into a supercoil," Yan explains. "Then the enzymes can come in and cut and reconfigure the topology to relieve the torsion in the supercoil so that all the other cellular machinery can have access to the gene for replication, transcription and so [more...]

Date: 2010-10-08 21:50:00

Scientist Solutions - DNA MicroArray Basics

Just came across this resource today, while looking up MicroArray companies. Its pretty nice and a great beginner step. DNA microarrays can be thought of as the massively parallel version of Northern blotting. While the Northern blotting technique is capable of analysing for each experiment the expression of one single gene in different conditions, microarrays allow the exploration of the expression levels of thousands of genes in several different conditions in one single run. As Northern blotting and many other classic techniques widely used in molecular biology, the fundamental basis of [more...]

Date: 2009-03-19 19:31:20

We share 98% of our DNA with chimpanzees

People with various genetic diseases share 99.9% of the DNA with healthy people. People with excesive hair, 6 toes and so on probably share 99.9% of the DNA with normal people. People with black skin, brown skin, yellow and white skin have been fighting because of the concept of race even though thay all share 99.9% of the genes. Just tiny deviation hardly measurable create so much conflict. Now, cloned animals and genetically modified animals are allowed as edible food. Considering that barely measurable differences in DNA can cause so much problem, are clones suitable as food? Already [more...]

Date: 2010-09-20 17:03:21

Physics News :: DNA art imitates life: Construction of a nanoscale ...

DNA art imitates life: Construction of a nanoscale Mobius strip The enigmatic M?s strip has long been an object of fascination, appearing in numerous works of art, most famously a woodcut by the Dutchman M.C. Escher, in which a tribe of ants traverses the form's single, never-ending surface.Scientists at the Biodesign Institute at Arizona State University's and Department of Chemistry and Biochemistry, led by Hao Yan and Yan Liu, have now reproduced the shape on a remarkably tiny scale, joining up braid-like segments of DNA to create M?s structures measuring just 50 nanometers across?roughly [more...]

Date: 2010-10-04 12:45:53

DNA Measurement Can Help Identify Most Viable Embryos For IVF

DNA Measurement Can Help Identify Most Viable Embryos For IVF Scientists from the University of Warwick and University Hospitals Coventry and Warwickshire NHS Trust, are the first to directly measure a specific region of DNA in human [more...]

Date: 2010-06-29 15:37:12

Household Dna Packs — Your In depth Guidebook to Correctness

Home DNA kits are pretty common, and now you find yourself in a situation where you’re using one. Maybe you’re questioning the mother’s integrity, maybe you’re just curious about the DNA… Really the reason doesn’t matter. Your primary concern right now should be getting the most accurate results as possible from this DNA test. In this article we’re going to be going over the various things that you can do to make sure that you get the most accurate results as possible from your DNA test. The best way for me to do this is to talk to you about the most common mistakes that people [more...]

Date: 2010-10-04 22:24:03

Siblings of autistic children may have some autism-related traits ...

“Nonautism-affected” kids, as defined in earlier research on siblings and autism, are still affected by autism-causing genes — and still share some autistic traits. This matters because, in the past, studies comparing DNA, brain images and other biological measures of autism have assumed that undiagnosed means unaffected. Maybe not. “It’s not an all or nothing condition,” lead author Dr. John N. Constantino said in a statement. Constantino also said that understanding more about how autism and autism-related traits may be inherited could one day help doctors predict transmission [more...]

Date: 2010-10-12 21:38:47

CIENCIASMEDICASNEWS: Recurrent Granulibacter bethesdensis ...

DNA was isolated from human tissue by using the Maxwell 16 Tissue DNA Purification Kit (Promega, Madison, WI, USA) according to the manufacturer’s protocol. DNA concentrations were measured by using a UV spectrophotometer (NanoDrop, Wilmington, DE, USA). The 16S rRNA and methanol dehydrogenase subunit 1 (GeneID YP_744165.1) genes of G. bethesdensis were analyzed by using a PCR and primer sequences 16S-forward: 5'-TCGGGTGGGCACTCTAAAGG-3', 16S-reverse: 5'-GCATCACTGCCTAGCTTCCC-3', MDH-forward: 5'-CCGCAATACGGTCAATTCG-3', and MDH-reverse: 5'-GCCGATCTTCCAGGTTTCTTC-3'. Each reaction mixture [more...]

Date: 2010-09-02 23:42:00

Michael v. Young: A National DNA database?

I'm inclined to think that a national DNA database would not necessarily infringe any privacy rights. Because I don't think anyone really cares about their genetic code as it would be used by law enforcement, I don't see that there is much to object to so long as we are sure that the intended use remains the only use. Basically, DNA for law enforcement functions as a kind of super-fingerprint -- and I take it that nobody considers themselves to have a privacy interest in their fingerprints, no matter how unique. I could imagine abuse of a DNA database, of course. For example, if the DNA [more...]

Date: 2010-03-15 19:32:00

Pregnancy Test Home dna kit home test hiv home test for diabetes drug

Parents who find that their children are taking drugs home dna kit can then take the right measures to help prevent them from drug abuse in the future. Therefore, if a parent is thinking of giving an at home home test hiv drug test to a teen, they need to do so on a random basis. The home testing kits test the drug through the urine, which eliminates the trace of the drug the quickest. There are lots of different methods to utilise and each of them have challenging side effects that you are forced to trouble about. However, at home drug tests can be used to test for drugs provided they are [more...]

Date: 2010-09-23 06:38:24

Mother of All Humans Lived 6000 Years Ago

Further, for so few--only 21.6 nucleotides out of 16,569--DNA differences to have accumulated at anything near the measured mutation rates, a much shorter time than "200,000 years" must have transpired since Mitochondrial Eve arrived on the scene. To stretch out across evolutionary time the occurrences of so few DNA changes requires a gymnastic juggling of the coefficients used in the various models, and appears to require a biologically unrealistic, super-slow mutation rate. Making the data fit vast timescales requires the use of a broken, circular-reasoning-based, evolutionary [more...]

Date: 2010-09-07 08:00:00

Sperm DNA damage measured by the alkaline Comet assay as an ...

To use this website, your browser must accept cookies. For help allowing your browser to accept cookies, view the help file. View our privacy policy. European Online Customer Service The Boulevard Langford Lane, Kidlington Oxford. OX5 1GB UK Hours: Monday - Friday, 8:30am - 5:00pm (Greenwich Mean Time/British Summer Time) Tel: +44 (0) 1865-843177 (Within Europe) Fax: +44 (0) 1865-843970 E-mail: eurosupport@elsevier.com North American and Rest of World Online Customer Service 6277 Sea Harbor Drive Orlando. FL 32887-4800 USA Hours: Monday - Friday, 7:30am - 6:00pm EST [more...]

Date: 2010-09-22 07:00:00

New Paper Shows Enzyme-Controlled Movement of DNA Polymer Through ...

This paper addresses a key challenge for DNA strand sequencing: fine control of the translocation of the DNA strand through the nanopore, at a rate that is consistent and slow enough to enable accurate identification of individual DNA bases. The Nature Nanotechnology work shows for the first time that the motion of a strand can be controlled using electronic feedback and that an enzyme can move a strand against a field while located on top of the nanopore. "The techniques described in this paper are an advance towards electronic, single molecule DNA sequencing of DNA strands" said [more...]

Date: 2010-09-28 17:46:34

DNA Paternity Testing and Child Support

Richardson, with the help of DADS of Michigan founder Murray Davis, is lobbying for support of legislation that would offer relief, including requiring courts to nullify child support orders, where aabb DNA tests have proven paternity fraud. Paternity Tests Help Cement Legal Support Such a law would add Michigan—where more than a quarter of 2005’s nearly 10,000 out-of-wedlock DNA paternity tests were negative—to the list of at least a dozen states with similar legal protections. Georgia law, for instance, allows for termination of child support obligations for men with proof of [more...]

Date: 2006-06-28 05:00:00

Replication of individual DNA molecules under electronic control ...

Nanopores can be used to analyse DNA by monitoring ion currents as individual strands are captured and driven through the pore in single file by an applied voltage. Here, we show that serial replication of individual DNA templates can be achieved by DNA polymerases held at the α-haemolysin nanopore orifice. Replication is blocked in the bulk phase, and is initiated only after the DNA is captured by the nanopore. We used this method, in concert with active voltage control, to observe DNA replication catalysed by bacteriophage T7 DNA polymerase (T7DNAP) and by the Klenow fragment of DNA [more...]

Date: 2010-10-08 10:14:00

Genomics: The next generation | Wellcome Trust

The advent of the Human Genome Project and the development of faster, cheaper DNA sequencing revolutionised medical and biological research - and the technology is still evolving. Mun-Keat Looi looks at the platforms pushing us closer toward the ‘$1000 genome’. At the turn of the millennium, genomics captured the public's imagination with the publication of the first draft of the human genome and the insights it offered into our biology. When the Human Genome Project started in 1991, DNA sequencing entailed laborious radiation-based methods, with researchers manually loading [more...]

Date: 2009-07-28 11:00:00

DNA art imitates life: Construction of a nanoscale Mobius strip

Scientists have reproduced a Möbius strip on a remarkably tiny scale, joining up braid-like segments of DNA to create structures measuring just 50 nanometers across -- roughly the width of a virus particle.... read [more...]

Date: 2010-10-04 16:16:02

DNA repair capacity identified those at high risk for non-melanoma ...

DNA repair capacity measurements effectively identified individuals who were at high risk for non-melanoma skin cancer, and may be a useful method to evaluate the efficacy of preventive therapies, according to new [more...]

Date: 2010-10-10 00:00:00

Scientists say rare plant has biggest genome yet « Xenophilia ...

A genome is the full complement of an organism’s DNA, complex molecules that direct the formation and function of all living organisms. The size of an organism’s genome is typically measured by the number of bases it contains – base pairs being the building blocks of DNA. The human genome, for example, has about 3 million bases and measures about 6 feet in length. The marbled lungfish has a whopping 130 million bases. And the 12-inch (30-centimeter) flower studied by Leitch turns out to have 150 million. Outside experts were impressed. “This is certainly an enormously large genome,” [more...]

Date: 2010-10-08 08:37:15

Biosensors: Morpholino offers you more

Molecular biologists and geneticists often use DNA microarrays to detect DNA, measure gene expression levels and detect the single-nucleotide polymorphisms that are responsible for various genetic diseases. A DNA microarray has tens of thousands of biosensors on its surface; each biosensor contains a short DNA fragment, known as a probe, for recognizing DNA targets. Ideally, the DNA biosensor should have high sensitivity (the ability to detect very low concentrations of targets), high specificity (the ability to distinguish the difference between similar targets) and high stability (the [more...]

Date: 2010-10-13 09:52:22

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

Autism and schizophrenia: Scientists measure gene mutation rate ...

Mutations are alterations of the cell’s DNA that can occur because of errors in the DNA replication, which happen prior to cell division. Once DNA is changed, this mutation is passed down to a next generation. A mutation that is newly formed and therefore not inherited from either parent is called a de novo mutation. More information: The paper, “Direct Measure of the de novo Mutation Rate in Autism and Schizophrenia cohorts,” published in the American Journal of Human Genetics, was authored by Philip Awadalla, et al. http://www.cell.com/AJHG Source: [more...]

Date: 2010-08-27 20:01:54

Dielectric Relaxation Analysis of Single-Stranded DNA in Liquid ...

3.2 Determination of dielectric properties of TN-LCD cells. It was revealed by the ICP analysis that DNA was dispersed in 5CB. We next tried to transform the characteristics of. DNA into an electrical signal by measuring the dielectric [more...]

Date: 2010-08-20 01:00:00


DNA testing can measure the probabilities that two individuals are cousins. The test can be used for legal or for personal purposes. Results may vary between 1% and 99% accuracy. [more...]

Date: 2010-01-02 00:37:05

Technology Review: A Portable DNA Detector

A new portable DNA analyzer performs real-time analysis of blood samples left at the scene of a crime. Researchers at the University of California, Berkeley, developed the device, which packs microfluidics, electronics, optics, and chemical detection technology into a single briefcase-sized unit. "While previous groups have developed lab-on-a-chip systems, none of them have succeeded in making a completely portable, robust system that can be used at a scene," says team leader Richard Mathies. On-site CSI: After a blood sample is collected from the scene of a crime, this briefcase-sized [more...]

Date: 2008-09-24 04:00:00

Facts and treatments What lupus nephritis | encurso.net

In this way, a blood test, you can easily find out if their kidneys are doing the right job, l '. blood tests moreadd can be done to measure serum levels in the blood and DNA antibodied. Thirdly, other studies can demonstrate the [more...]

Date: 2010-10-12 20:18:27

Aunt / Uncle

The Aunt/Uncle DNA test, also known as Avuncular Testing, measures the probabilities that a participant is either aunt or uncle to another participant. The probabilities can be increased greatly if other known relatives, [more...]

Date: 2010-01-02 00:37:05

Guide to Ethnic DNA Testing: How to Prove Your Ancestors' Ethnicity

Learn how ethnic DNA testing can measure your geographical and racial heritage, including native American, African American, and Jewish [more...]

Date: 2009-04-20 14:50:06

Graphene may hold key to speeding up DNA sequencing

(Nanowerk News) In a paper published as the cover story of the September 9, 2010 Nature, researchers from Harvard University and MIT have demonstrated that graphene, a surprisingly robust planar sheet of carbon just one-atom thick, can act as an artificial membrane separating two liquid reservoirs. By drilling a tiny pore just a few-nanometers in diameter, called a nanopore, in the graphene membrane, they were able to measure exchange of ions through the pore and demonstrated that a long DNA molecule can be pulled through the graphene nanopore just as a thread is pulled through the eye of a [more...]

Date: 2010-08-19 07:00:00

Dr. Colleen Fitzpatrick on DNA and Forensic Genealogy

Please join us tonight at 7 p.m. at the Duke Homestead Visitor’s Center for a talk by Dr. Colleen Fitzpatrick. Colleen Fitzpatrick, Ph.D., is the author of two of the best-selling books in genealogy. She has been featured on NPR’s Talk of the Nation radio program (July 2005), and has written cover articles for Internet Genealogy (June 2006), Family Tree Magazine (April 2006) and Family Chronicle (October 2005). Colleen writes a regular column for Ancestry magazine. Her book Forensic Genealogy has been widely recognized for its innovative forensic science approach to genealogical [more...]

Date: 2010-10-06 13:53:38

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