DNA

Ever thought about what’s in your DNA? Extracting DNA from a single cell can expose a wide variety of information about your ancestry, traits and even your health. Today there are many molecular techniques that are used to isolate and amplify DNA fragments. The analysis of genes requires multiple copies of the DNA sequences used. For many years gene cloning was the only way to amplify DNA fragments. Gene cloning was labor intensive and requires at least a few days for the bacteria to grow. The cloning

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

transmission to the next generation. Before the DNA double helix was discovered two biological question were unanswered: how can information for specifying an organism be carried in chemical form? and how is it accurately copied? It was not until the 20th century when the DNA molecule was discovered and suggested answers to both these questions. (Alberts B, Johnson A, Lewis J, et al, 2002) With the help of many scientists we now know exactly what the DNA molecule is, its structure, and its function

GENOMIC AND MITOCHONDRIAL DNA IN FORENSIC DENTISTRY The genomic DNA is found in the nucleus of each cell in the human body and represents a DNA source for most forensic applications. The teeth are an excellent source of genomic DNA because PCR analyses allow comparing the collected postmortem samples to known antemortem samples or parental DNA. Mitochondrial DNA is another type of material that can be used for body identification. Its main advantage is the high number of copies per cell (from hundreds

DNA profiling is a method of identifying an individual by unique characteristics of their DNA. A specific DNA pattern, called a profile, is obtained from an individual or a sample of tissue. This allows the comparison of the base sequence of two or more DNA samples to determine whether they are related. DNA profiling has many uses, in prevention of economic fraud, dietetic work, and classifying species, identifying bodies, forensic science, screening for disease, and investigating paternity.

DNA is a double helix structure which helps to keep the structure of the molecule stable. DNA has a phosphate sugar back bone and covalent bond which also help with the stability of the DNA. DNA also has coiling which is also very helpful with the stability of the molecule. DNA has two types of bases, these are known as purines and pyrimidines. Purines are adenine and guanine and the pyrimidines are thymine and cytosine. Purines are double ringed structures whereas pyrimidines are a single ring

Pawlak, Lara van der Woude, Date: 12/12/2014 Valerie SelsEmail: saburo_aikini441@yahoo.com | Lab Report DNA: Plasmids and Nucleases 1. Abstract The goal of this practicum was to isolate plasmid DNA from Escherichia coli (E. coli), to identify it, to prove that the plasmid is circular and double-stranded and to give bacterial cells new genetic properties via transformation. An unknown plasmid

DNA fingerprinting for crime solving and paternity testing Currently, DNA fingerprinting is the most innovative technology used to determine parentage and crime solving. DNA fingerprinting does not give any direct information as to the nature of the genes coded for by the DNA, and it gives no information about the chemical sequence of the DNA. It does, however, give direct information about the identity of individual, including their relatedness. DNA fingerprinting is a forensic technique used to

DNA Deoxyribonucleic acid and ribonucleic acid are two chemical substances involved in transmitting genetic information from parent to offspring. It was known early into the 20th century that chromosomes, the genetic material of cells, contained DNA. In 1944, Oswald T. Avery, Colin M. MacLeod, and Maclyn McCarty concluded that DNA was the basic genetic component of chromosomes. Later, RNA would be proven to regulate protein synthesis. (Miller, 139) DNA is the genetic material found in most viruses

DNA (deoxyribonucleic acid) is a self-replicating nucleic acid that carries the genetic information in cells in a double helix structure. The 2 stranded helix is composed of 4 nucleotides, Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). The base pairs only form between A and T connected by 2 Hydrogen bonds and G and C connected by 3 hydrogen bonds. Foremost DNA wrapping comes about as DNA wraps around protein called histones. These combined loops of DNA and protein are called nucleosomes