DNA

The Importance of DNA in Criminal Investigation How is DNA used in the Criminal Justice System? To better understand how DNA is used and how important it has become for our Justice System we first need to understand what DNA is and how unique it makes every single living thing. In this report I will explain what DNA is, and how it has changed the way the Criminal Justice System is able to match a suspect to a crime. What is DNA? DNA is a molecule called deoxyribonucleic acid (DNA), which…

Crick then met John Watson and together they solved the structure of DNA using available X-ray data at the time and model building. After discovering the double helix model, Crick and fellow scientists were members of the informal "RNA tie club," which was created in order "to solve the riddle of RNA structure, and to understand the way it builds proteins." The club’s primary subject was on the "Central Dogma" which stated that DNA was…

believe DNA contained genetic material because it was not seen as complex due to the fact not much was known about it yet, so many presumed proteins were the genetic material of life. It was not until scholars such as Frederick Griffith, Meselson-Stahl, James Watson, Francis Crick, Maurice Wilkins, Rosalind Franklin, Avery, McCarty, Erwin Chargaff and many more conducted experiments that would expose astonishing discovering that will lead to the understanding of DNA also known as the Race for…

down the foundation for them, the discovery became so close it was nearly tangible (“Discovery of DNA Structure & Function”). Watson and Crick were equipped with the knowledge to know that the number of purines in a person’s DNA was the same as the number of pyrimidines; particularly, the amount of adenine was equal to the amount of thymine, and similarly with cytosine and guanine (“Discovery of DNA Structure & Function”). These nitrogenous bases include adenine and guanine as purines, and…

biology professor explained genes as small units of DNA in a sea of genetic gibberish or junk. The concept of “junk DNA”was very intriguing to me that why nature created those billions of nucleotides of DNA inside a cell, organized it and packed it without any purpose? Soon I started following the thoughts of Francis Crick, Nobel laureate and co-discoverer of DNA double-helix, who in the early 1960s professed his views on intronic regions of DNA as “little better than junk.” That journey led me…

DNA in Forensic Science Every organism contains cells within which an organic polymer called Deoxyribonucleic acid (DNA) is found. This particular polymer is composed of the phosphate backbone part, deoxyribose sugar part and also the nitrogenous base part. According to Butler, (2010), the phosphate backbone and deoxyribose sugar components are constant in all persons and, therefore, biologists today utilize the nitrogenous base component since it helps in distinguishing different individuals.…

DNA and RNA are nucleic acids that takes part in protein synthesis. The nucleic acid has molecules that are big. Nucleotides has phosphorus, atoms, hydrogen and oxygen that creates them. Each nucleotide has ribosome or deoxyribose. DNA is the genetic material of a cell that has a repeating chain of five-carbon sugars connected together. It has four organic bases which are called nucleotides. There’s also deoxyribose which is a sugar that is in a double helix shape. DNA molecules…

therefore makes this a reliable source. Bias: This article is mainly background information on DNA and how DNA fingerprinting works. It gives the scientific reasoning and techniques used throughout the process. It begins to give concerns about DNA fingerprinting however does not give an opinion behind it, leaving this article completely unbiased. Relevance: This source is relevant to the topic selected being DNA fingerprinting and can be used throughout the essay as an information…

scientists’ stances on creating a perfect product is the research being done on recombinant DNA. Recombinant DNA is any single molecule containing DNA sequences from two or more organisms. The process of creating recombinant DNA relies on the use of restriction enzymes, gel electrophoresis, and DNA ligase. The first step in creating this new DNA strand is to cut the gene sequences you want from the original DNA molecule. This sequence will be cut by the restriction enzyme in such a way that it…

DNA analysis by By Condy Kan Introduction Osamu Shimomura and his colleagues successfully discovered and isolated green fluorescent protein (GFP) from the jellyfish Aequorea victoria; GFP consists of a tripeptide, which is Ser-65, Tyr-66, and Gly-67, that forms fluorescence chromophore (1). Fluorescence chromophore, is accountable for its green fluorescence under UV light, helps to identify and determine the cells if the Enhanced Green Fluorescent Protein (EGFP) gene is expressed or not (2). In…