Dna: past, present, and future essay

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Dna: past, present, and future essay

Get Full Essay Get access to this section to get all help you need with your essay and educational issues. Past, Present, and Future Essay Sample DNA, or deoxyribonucleic acid, is a nucleic acid containing genetic information and instruction that is essential in the growth and operation of all living organisms except certain viruses.

DNA is composed of segments called genes that contain the process directions needed to build other cellular components such as RNA and proteins. DNA comprises of two long polymers called nucleotides, which consist of backbones constructed by sugars and phosphate groups held together by ester bonds.

As the two strands run in opposite directions in an anti-parallel manner, they form a double helix. The four types of molecules attached to each sugar as called adenine, guanine, thymine, and cytosine.

These bases create the sequences of information that are read by genetic code by a process called transcription; copying expanses of DNA into the RNA.

Although both eukaryotes and prokaryotes store DNA, eukaryotes do so in the nucleus with the exception of mitochondria and chloroplasts which have their own DNA and prokaryotes do so in the cytoplasm. Chromatin proteins in the chromosomes compress and organize DNA, thus maneuvering the interactions between DNA and other proteins.

A short while later, inPhoebus Levene discovered the general structure of DNA; the sugar and phosphate base.

Dna: past, present, and future essay

Although he thought that DNA consisted of a string of nucleotides through the phosphate groups, he was incorrect in suggesting that the chain was short and the bases repetitive in a fixed manner.

If DNA is contained in the genetic material of phage, it is definitely a hereditary tool. Their proposal was based on an X-ray diffraction image taken by Rosalind Franklin in Mayand on raw information about DNA bases being paired from Erwin Chargaff, whose rules played a significant role in the establishment of double-helix configuration.

Holley, and Marshall Nirenburg deciphered the genetic code. These people led the way to modern DNA analysis. As DNA was identified as a container of genetic information, nowadays, it is used to identify, screen, detect, develop, prevent, and treat. In short, it has furthered science significantly.

A glimpse into past, present, and future DNA sequencing. Write my sample Recombinant DNA technology is currently used for the purpose of genetic transformations to produce genetically modified organisms StateUniversity.
Past, Present, Future | Essay Example Dna fingerprinting in forensics:
Get Full Essay Get Full Essay Get access to this section to get all help you need with your essay and educational issues. We all originated from a same ancestor Homo sapiens who were mutual parents in the past.

Genetic analysis, which is only possible because the structure of DNA and the knowledge that DNA contains genetic information is known, allows public health agencies to identify infectious diseases in a quick manner, thus monitoring the threats. On a similar note, the presence of food and health threatening microorganisms such as E.

It is also used to predict and better the future of the Earth and its climate, and human healthcare: Information gleaned from the characterization of complete microbial genomes is now being applied to develop alternative sources of energy and understand biological carbon cycling as it relates to global climate change.

In the emerging era of personalized medicine, DNA analysis is already helping researchers and physicians to better understand disease predisposition, subtypes, and response to treatment.

Several targeted medicines are already available, which are designed to work for patient exhibiting a specific DNA profile.

Like the fingerprints that came into use by detectives and police labs during the s, each person has a unique DNA fingerprint. Unlike a conventional fingerprint that occurs only on the fingertips and can be altered by surgery, a DNA fingerprint is the same for every cell, tissue, and organ of a person.

It cannot be altered by any known treatment. Consequently, DNA fingerprinting is rapidly becoming the primary method for identifying and distinguishing among individual human beings. An additional application of DNA fingerprint technology is the diagnosis of inherited disorders in adults, children, and unborn babies.

It is a laboratory procedure that uses DNA-modifying enzymes, such as nucleases and ligases. Nucleases are enzymes that cut DNA strands by catalyzing the hydrolysis of the phosphate-ester bonds.

The most frequently used nucleases are the restriction endonucleases, which cut DNA at specific sequences. Naturally, these enzymes prevent phage infection in bacteria by digesting the phage upon entry. In science, they are used in molecular cloning and DNA fingerprinting.

Ligases carry out the opposite functions; they reform cut or broken DNA strands. They are used to join together short segments of DNA to replicate a complete copy in DNA repair and genetic recombination.DNA: Past, Present, and Future Essay Sample.

DNA, or deoxyribonucleic acid, is a nucleic acid containing genetic information and instruction that is essential in the growth and operation of all living organisms (except certain viruses).

This paper discusses about future evolution of human beings and the future outcomes of the human beings. It also details the prospects of. Past Present and Future Words | 7 Pages The Bachelor of Science in Management program is designed to develop professional knowledge and skills of general managers in their organization or professional industry by improving organizational effectiveness (University of Phoenix, ).

Genetic Engineering Past and Present This Essay Genetic Engineering Past and Present and other 64,+ term papers, college essay examples and free essays are available now on attheheels.com Autor: review • September 2, • Essay • 3, Words (13 Pages) • 2, Views4/4(1).

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DNA: Past, Present, and Future | Essay Example