The Definition of DNA - 904 Words

DNA: DNA is a double-stranded nucleic acid that contains the genetic information for cell growth, division, and function. DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Most DNA is located in the cell nucleus but a small amount of DNA can also be found in the mitochondria .The information in DNA is stored as a code made up of four nitrogen bases which are adenine (A), guanine (G), cytosine (C), and thymine (T). these nitrogen bases are bind with each other through hydrogen bond. [1] History of DNA research dna structure dna replication Before a cell can divide, it must duplicate all its DNA. In eukaryotes, this occurs during S phase of the cell cycle. The Biochemical Reactions * DNA†¦show more content†¦This means that micronutrient deficiencies can be addressed in these countries.[9] References: 1. www.nih.gov 7.users.rcn.com 8.ehow.com 9.Show MoreRelatedThe Definition of DNA916 Words   |  4 PagesDNA: DNA is a double-stranded nucleic acid that contains the genetic information for cell growth, division, and function. DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Most DNA is located in the cell nucleus but a small amount of DNA can also be found in the mitochondria .The information in DNA is stored as a code made up of four nitrogen bases which are adenine (A), guanine (G), cytosine (C), and thymine (T). these nitrogen bases are bind withRead MoreTaking a Look at DNA Supercoiling684 Words   |  3 PagesDNA supercoiling is the over-winding or under-winding of a DNA strand. In general, most organisms’ DNA is negatively supercoiled. There are two types of supercoiling: positive and negative. Positive supercoiling means that the DNA strands are twisted in the right direction; whereas negative supercoiling means that the DNA strands are twisted in the left direction. The laws of Physics govern everything that happens in the w orld, including DNA coiling in living beings. Some of the concepts in PhysicsRead MoreWhat Is A Gene?1446 Words   |  6 PagesWhat is a gene? The word Gene derives from the Greek â€Å"genesis† (birth) or â€Å"genos† (origin) and was first coined by Wilhelm Johannsen in 1909. At that time, little or nothing was known about the existence of DNA, and the word gene was used to describe the Mendelian concept of a phenotypical trait that is transmitted through inheritance (Johansen, 1909). The gene as the fundamental unit of heredity is the original meaning of the word as first geneticists intended it. This essentially explains theRead MoreHuman Body Systems Career Journal974 Words   |  4 PagesJournal 2015-2016 Entry #1 Activity: 1.2.3 Bone Detectives Description: Forensic Anthropologists helps to study the skeletal systems of people to determine the sex, ethnicity, and distinct characteristics of the dead skeleton they are studying. Definition for Forensic Anthropologist: As a Forensic Anthropologist you will be working with and investigating disease people. You will study the entire body as well as the skeletal structure and be able to get specifics as to who the body you are investigatingRead MoreEssay about DNA, The New Crime Investigator1358 Words   |  6 PagesDNA, The New Crime Investigator Abstract What is DNA? The scientific definition is â€Å"deoxyribonucleic acid, the biological polymer that stores the genetic information in all free living organisms. Two linear molecules entwine to form the double helix. Now that the definition has been stated, let’s now define what DNA means to a crime scene or case investigator. In the law enforcement business DNA has been introduce as a revolutionary and efficient accurate tool to solve and crack modern andRead MoreBackground Explanation Of Epigenetics By Conrad Waddington883 Words   |  4 PagesDNA than the their less depressed counterparts (Reiche, Vargas Nunes, Kaminami Morimoto, 2004). Background Explanation of Epigenetics Epigenetics What is epigenetics? Epigenetics is a term that was coined by Conrad Waddington that describes the heritable changes in the cellular phenotypes that are observed independently of alterations that occurs in the DNA sequence (Dawson Kouzarides, 2012). He proposed that there was a link between development and genetics, which is where the field of epigeneticsRead MoreDna Testing And The Second Amendment1276 Words   |  6 PagesDNA AS EVIDENCE DNA testing was first used in criminal prosecutions in 1985 and is now admissible in all states. (Hails, 184) Scientific and legal communities seem to universally accept the use of DNA as â€Å"good† evidence. Questions could arise regarding testing procedures. There are several testing methods that have been proven reliable and easily pass general acceptance and scientific validity tests. This is causes number of Daubert cases questioning DNA to decline. â€Å"In most cases, the tests thatRead MoreThe Deep Oceanic Trenches Near Thermal Vents1049 Words   |  5 Pagesoperational definitions as test parameters. Our results have implications for the continued study of deep sea organisms. Such study will provide insight into important questions about, for example, how certain organic compounds and metabolism function in deep sea organisms. ork such as this will advance understanding of nature and other factors controlling the biogeography and biodiversity of the ecosystems. Methods and Materials (see flow chart for better understanding): Operational Definitions: Alive-Read More The Benefits of Cloning Essay970 Words   |  4 Pagesmore recent then many think. Cloning can be (better) understood by looking at it’s definition, process, and some examples. This first step to better understanding cloning is to hear precisely what it is. Cloning can be defined as an organism or group of organisms derived from another organism by an asexual reproductive process. Usually members of a clone are identical in genes (Clarke, 1). Even though the definition is relatively simple, it will be several years before these projects will be technicallyRead MoreHow Do New Technologies Face the Rapid Expansion of the Electronic Data Storage?970 Words   |  4 Pagesor written to the storage medium, and capacity, which denotes â€Å"how much disk space one or more storage devices provides† (Techterms, 2009). To boost these fundamental characteristics, other technologies emerged, such as Holographic Data Storage and DNA-based Data Storage. The Holographic Data Storage is a new emerging technology that helps considerably in high-capacity data storage by enhancing the process’ performance. Using this technology, the data writing and reading processes are executed at