Deoxyribonucleic acid (DNA) is a molecule that encodes the genetic information used in the development and function of all known living organisms and some viruses. It is a major macromolecule that is essential for all known forms of life. Knowing this‚ several groups of scientists raced to find out how this essential molecule was structured. In an attempt to answer this question‚ James Watson and Francis Crick got together at the Cavendish Laboratory in Cambridge‚ England to experiment and record
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RECOMBINANT DNA TECHNOLOGY * It is a technology that allows DNA to be produced via artificial means. * It is the joining together of DNA molecules from two different species that are inserted into a host organism to produce new genetic combinations that are of value to science‚ medicine‚ agriculture‚ and industry. * Since the focus of all genetics is the gene‚ the fundamental goal of laboratory geneticists is to isolate‚ characterize‚ and manipulate genes. Although it is relatively
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DNA is the common name for Deoxyribonucleic acid. This is made up of nucleic acids containing deoxyribose (sugar)‚ consisting of complex molecules‚ present in the chromosomes of all plant and animal cells‚ and carrying in coded form instructions for passing on hereditary characteristics. The DNA molecule takes the shape of a double helix‚ a simple structure that resembles gently twisted ladders. The rails of the ladder are made of pairs of nitrogen-containing nucleotides‚ which are subdivisions
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Since its discovery in the 1980’s‚ the application of DNA has been utilized in many ways. When Deoxyribonucleic Acid‚ or DNA is examined‚ a precise decoding of genetic information is revealed. With the exception of identical twins‚ every person’s genetic code (commonly referred to as a Genetic Fingerprint) is inherited and unique. From Maury advising men everyday on TV “You ARE the Father!” or “You are NOT the Father!” to learning the descendents of former slaves are related to President Thomas Jefferson
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Extraction of DNA from an Onion Molecular biologists and biochemists are involved with research in finding out as much as possible about the DNA in plants. DNA was discovered in the 1950’s‚ there still remains a lot to be known about it‚ especially how it is used to determine the physical traits that we all have‚ and how it regulates the workings of the body. deoxyribonucleic acid is a chemical‚ we can do reactions with it just like we can work with any other chemical. Experiment: Note:
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DNA databases In 1992‚ The United States‚ Federal Bureau of Investigation funded the Combined DNA Index System (CODIS). It is a computer system that stores DNA profiles created by federal‚ state‚ and local crime laboratories in the United States‚ with the ability to search the database in its entirety; it also helps agencies identify suspects of crime. The origin of CODIS is attributed to the Scientific Working groups (SWG) that began in the late 80’s. SWG was backed by the FBI Laboratory which
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In the process of recovery‚ it is suggested that the basic driving force for most individuals is the desire for a better quality of life (Laudet‚ Morgan & White‚ 2006). Consequently‚ one method of support many choose is spirituality and religion. Laudet‚ Morgan‚ and White (2006) suggest that there has not been an abundance of scientific investigation into interventions that utilize spirituality in the treatment plan until recently. In order to gather data pertaining to spirituality and the part that
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DNA extraction lab 1. A number of steps are required to isolate DNA from cellular content. Describe what happens at each step‚ and why it acts to separate the parts of the cell. The steps include a) breaking cell open to release the DNA; b) separating the DNA from cellar materials and proteins; c) using alcohol to precipitate the DNA; d) cleaning the DNA; e) confirming the presence of the DNA. a) Breaking cell open to release the DNA: the cells are separated from each other by physical means such
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The purpose of the DNA extraction lab was not only to inform students on how DNA is present in humans and all organisms‚ but to also educate them on how DNA can be extracted using common household materials. Also‚ the lab was very efficient as it introduced the students to extracting their own DNA found on their cheek cells as well as letting them take an observation on how DNA appears or how it is formed. Additionally‚ students were instructed through a very clear and simple procedure‚ which guided
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DNA REPLICATION WHAT IS DNA? DNA is a molecule that has a repeating chain of identical five-carbon sugars (polymers) linked together from head to tail. It is composed of four ring shaped organic bases (nucleotides) which are Adenine (A)‚ Guanine (G)‚ Cytosine (C) and Thymine (T). It has a double helix shape and contains the sugar component deoxyribose. THE PROCESS OF DNA REPLICATION How DNA replicates is quite a simple process. First‚ a DNA molecule is "unzipped". In other words‚ it
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