DNA

A detailed Summary of DNA


DNA is a thin, chainlike molecule found on every living cell on earth. It directs the formation, growth, and reproduction of cells and organisms. DNA is found in mainly within a cell's nucleus, in structures called chromosomes. DNA consists of thousands of smaller chemical units (nucleotides). There are four DNA bases: Adenine, Guanine, Thymine, and Cytosine. "The exact amount of each nucleotide and the order in which they're arranged are unique for every kind of living thing and that's what makes us so different" ( Relly, 98, 2000 ). DNA without a doubt is probably one of the greatest wonders most important to the existence of life. DNA has not only helped us understand more about us but it has helped us in other ways such as DNA fingerprinting.

DNA fingerprinting is a method of


In retrospect thanks to all the advancements of technology we have been able to find out that all living cells contain the genetic material DNA. It has helped us advance as a species and help us find solutions to many problems. Some scientist believe that DNA is one of the fundamental substances of living things and who knows in the future in what other ways DNA may help us.

identification that compares fragments of deoxyribonucleic acid. "DNA has helped science advance in multiple ways and society as well" ( Carroll, 659, 1997 ). A DNA fingerprint is constructed by first extracting DNA sample from the body tissue or fluid such as hair, blood, or saliva. The sample is then segmented using enzymes, and the segments are arranged by size using a process called electrophoresis. The seg

Some common words found in the essay are:
Thymine Cytosine, DNA DNA, , Encarta Encyclopedia, dna fingerprinting, dna helped, dna found, dna fingerprint,

Approximate Word count = 541
Approximate Pages = 2 (250 words per page double spaced)

Category: Science

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