Dna deoxyribonucleic acid essay

Introduction What is 'Magnetic Therapy'? Put simply, it is the use of magnets to treat or ease the symptoms of various diseases and conditions, including pain. There are excellent articles on the Internet explaining and debunking magnetic therapy and we will provide links to some of these at the end of this essay.

Dna deoxyribonucleic acid essay

InThomas D. Brock and Hudson Freeze of Indiana University reported a new species of thermophilic bacteria which they named Thermus aquaticus.

Dna deoxyribonucleic acid essay

This bacterium is a chemotroph —it performs chemosynthesis to obtain food. However, since its range of temperature overlaps somewhat with that of the photosynthetic cyanobacteria that share its ideal environment, it is sometimes found living jointly with its neighbors, obtaining energy for growth from their photosynthesis.

Morphology[ edit ] Thermus aquaticus is generally of cylindrical shape with a diameter of 0. The rod-shaped bacteria have a tendency to aggregate. Aldolase[ edit ] Studies of this extreme thermophilic bacterium that could be grown in cell culture was initially centered on attempts to understand how protein enzymes which normally inactivate at high temperature can function at high temperature in thermophiles.

InFreeze and Brock published an article describing a thermostable aldolase enzyme from T. Taq I restriction enzyme[ edit ] Further information: TaqI Most molecular biologists probably became aware of T.

DNA polymerase "Taq pol" [ edit ] Further information: Taq polymerase DNA polymerase was first isolated from T. Later, Kary Mullis and other investigators at Cetus Corporation discovered this enzyme could be used in the polymerase chain reaction PCR process for amplifying short segments of DNA[9] eliminating the need to add enzyme after every cycle of thermal denaturation of the DNA.

The enzyme was also clonedsequencedmodified to produce the shorter 'Stoffel fragment'and produced in large quantities for commercial sale. Other enzymes[ edit ] The high optimum temperature for T. Other enzymes isolated from this organism include DNA ligasealkaline phosphataseNADH oxidaseisocitrate dehydrogenaseamylomaltaseand fructose 1,6-disphosphate-dependent L-lactate dehydrogenase.

Controversy[ edit ] The commercial use of enzymes from T. Brock's studies, samples of the organism were deposited in the American Type Culture Collectiona public repository.

Other scientists, including those at Cetus, obtained it from there.

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As the commercial potential of Taq polymerase became apparent in the s, [13] the National Park Service labeled its use as the "Great Taq Rip-off".The Deoxyribonucleic acid is one of the most popular assignments among students' documents. If you are stuck with writing or missing ideas, scroll down and find inspiration in the best samples.

Deoxyribonucleic acid is quite a rare and popular topic for writing an essay, but it certainly is in our database. Many polymers exist in nature. Among these are silk, cotton, starch, sand, and asbestos, as well as the incredibly complex polymers known as RNA (ribonucleic acid) and DNA (deoxyribonucleic acid), which hold genetic codes.

The polymers discussed in this essay, however, are primarily of the synthetic. Introduction What is 'Magnetic Therapy'? Put simply, it is the use of magnets to treat or ease the symptoms of various diseases and conditions, including pain. DNA stands for deoxyribonucleic acid and is one of the two types of nucleic acid found in our cells.

The name describes what the molecule is. DNA is beautifully intricate and works in complicated mechanisms to control the cell. Words to Know Aerobic bacteria: Bacteria that need oxygen in order to live and grow. Anaerobic bacteria: Bacteria that do not require oxygen in order to live and grow.

Bacillus: A type of bacterium with a rodlike shape. Capsule: A thick, jelly-like material that surrounds the surface of some bacteria cells. DNA is a two-stranded molecule that appears twisted, giving it a unique shape referred to as the double helix..

Each of the two strands is a long sequence of nucleotides or individual units made.

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