What is Dna?
DNA is a biological material that enables an individual to be identified against any other individual anywhere in the world. It is the most effective subject for determining whether two or more individuals are biologically related, and it is of vital importance in solving crime and determining paternity. But most people don’t know a great deal about what DNA actually is, how it works and why it is the subject of so much research and so much development spending.
DNA, or Deoxyribonucleic acid, is a material found in us all, profiling what we’re like and where we’ve come from. It’s passed down to us from our parents, where we receive half of our DNA maternally and half our DNA paternally. The DNA itself contains the instruction or blueprint for life, and controls the function of the cells as well as being a perfect indicator of ancestry and biological relations.
DNA is made up of various nucleotides, and is essentially made up of amino acids, and it is matched with the so-called bases which provide the key to determining the genetic blueprint. DNA can be extracted from a range of sources, including samples of hair, cigarette butts, blood, razor clippings or saliva. Thus it is relatively easy to obtain samples, which can then be tested in a laboratory to determine any genetic relationships that may be present.
Where DNA Comes From
DNA is made up of one half of your mother’s DNA and one half of your father’s DNA, and will be 50% passed down to your children. It is this that ensures DNA is unique, and allows for accurate testing of parentage and direct descendance through a DNA paternity test.
Why Is DNA Important?
Biologically, DNA is essential to life. It’s found in all humans and all other organisms, in every cell, and stores complex information about the way we are, inherited from our parents. What this means is that DNA is absolutely unique and individual, which is perfect for determining factual circumstances in a number of cases. Through testing DNA, relationships of parentage can be easily established as can siblingship and even more distant family relationships. It can also help establish where two specimens of DNA match, thus allowing identification of the same DNA profile to be made for legal reasons.
Whilst DNA is important biologically, it is also becoming an increasing factor in our everyday lives, with immigration processes, the police and the judicial system all relying on formal DNA testing as part of their fact-finding procedures. Whilst the results from DNA testing are not exactly conclusive of the facts, they do provide one of the best and most reliable guarantees of accurate, positive identification.
Where Can DNA Be Found?
DNA is present in every living thing, and it can even be found occasionally in some viruses. It is found within cellular material, more specifically within the nucleus where the chromosomes can be seen and subsequently analysed. DNA is located within each cell to give the opportunity to repair the body and grow, and it can be analysed to achieve a picture of the original source thanks to incredible advances in testing techniques and research.
About the Author
Kevin Camilleri writes articles for dna paternity test. Other articles written by the author related to paternity testing, home paternity test and paternity test kit can be found on the net.
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23andMe Personal Genome Service: DNA Test for Health and Ancestry Information 23andMe Personal Genome Service provides a collection of education materials to guide you on your personal journey of genetic discovery. It is a retail DNA testing service providing information and tools for consumers to learn about and explore their DNA. The Illumina Infinium HumanHap550-Quad+ HD Bead Research Use Only Chip has been customized for use in all of the products and services by 23andM… |
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Ancestry Match Genetic Test (DNA Testing for determining Ancestry Origin) Have you ever wondered what your genetic links with populations around the world are? With our ancestral origins DNA test your DNA will be compared against different know global populations that have been scientifically verified. The lab checks the likelihood of your genetic information with each of these populations and regions. The results are plotted on a map that shows your genetic heritage. T… |
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The Seven Daughters of Eve: The Science That Reveals Our Genetic Ancestry $9.86 The national bestseller that reveals how we are descended from seven prehistoric women. One of the most dramatic stories of genetic discovery since James Watson’s The Double Helix, The Seven Daughters of Eve reveals the remarkable story behind a groundbreaking scientific discovery. After being summoned in 1997 to an archaeological site to examine the remains of a five-thousand-year-old man, Bryan … |
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Trace Your Roots with DNA: Use Your DNA to Complete Your Family Tree $9.11 Written by two of the country’s top genealogists, this authoritative book is the first to explain how new and groundbreaking genetic testing can help you research your ancestryAccording to American Demographics, 113 million Americans have begun to trace their roots, making genealogy the second most popular hobby in the country (after gardening). Enthusiasts clamor for new information from dozens o… |
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DNA & Genealogy $14.91 DNA & Genealogy is more than a textbook on DNA analysis for genealogy. Beginner, intermediate, and advanced readers will all find this book fascinating. In addition to tutorials on the use of DNA for genealogy, DNA & Genealogy contains many unusual sidelights on “DNA in the News” and “Weird DNA”. Do you know that there are people who have more than one DNA profile? Would you like to know about the… |
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Deep Ancestry (Paperback) $21.97 The fossil record locates human origins in Africa, but little is known about the great journey that took Homo sapiens to the far reaches of the Earth. How did we, each of us, end up where we are? Why do we appear in such a wide array of different colors and features? Such questions are even more amazing in light of genetic evidence that we are all related–descended from a com- mon African ancestor who lived only 60,000 years ago. Thanks to new genetic testing methods, we now know that the greatest history book ever written is the one hidden in our DNA.In Deep Ancestry, geneticist and explorer Spencer Wells unravels the slight changes in our DNA over time to tell the ancient story of our shared human journey. He also details the current work of Genographic Project–the landmark study that will assemble the world`s largest collection of DNA samples to map how humankind populated the planet. He describes how the Project uses sophisticated computer analysis of DNA contributed by hundreds of thousands of people–including indigenous populations and the general public–to reveal man`s migratory history and to better understand the connections and differences that make up the human race. The narrative works backward, starting from today and gradually working its way to humankind`s common ancestors. From the beginning, the book taps into a reader`s interest in genealogy, family history, and ethnic identity. Most of us have a decent sense of our family history, but eventually we all hit a brick wall. DNA takes us beyond it, and this is the unifying theme that will lead us from the stories of the present into the realm of deep ancestry. Now in a thoroughly revised second edition, Deep Ancestry represents the very latest research on where we came from and relates it to our own personal quest to discover the deep ancestry behind our family genealogies and touch the depths of our common origins.For more information about the Genogr |
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DNA By Ollhoff, Jim $40.31 Describes how genetic testing and DNA are being used in the field of genealogy, details famous genealogical discoveries using DNA, and explains how genetic mutations can be traced to determine ancestry. Author: Ollhoff, Jim Series Title: Your Family Tree Subtitle: Window to the Past Publication Date: 2010/09/01 Number of Pages: 32 Binding Type: Library Grade Level: 46 Language: English Depth: 0.25 Width: 8.25 Height: 10.00 |
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Deep Ancestry by Wells, Spencer Edition ILL, 0 $9.99 Travel backward through time from today’s scattered billions to the handful of early humans who lived in Africa 60,000 years ago and are ancestors to us all. In Deep Ancestry, scientist and National Geographic explorer Spencer Wells shows how tiny genetic changes add up over time into a fascinating story. Using scores of real-life examples, helpful analogies, and detailed diagrams and illustrations, he explains exactly how each and every individual’s DNA contributes another piece to the jigsaw puzzle of human history. The book takes readers inside the Genographic Project—the landmark study now assembling the world’s largest collection of DNA samples and employing the latest in testing technology and computer analysis to examine hundreds of thousand of genetic profiles from all over the globe—and invites us all to take part. |
