Essay On DNA

DNA is the short form of Deoxyribonucleic Acid and is the hereditary material for almost all living things. Although you might have read it in many DNA essays, this DNA essay elaborates on the functions of DNA. In addition, you will find where DNA is located, by reading through this DNA essay. This DNA essay will also enlighten on what constitutes the DNA and how it works.
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DNA is mostly contained in the nucleus of each cell, for those living things with it. The mitochondria DNA also exist in mitochondria. The RNA viruses do not contain the DNA. The DNA contains the genes that carry the hereditary information.

DNA is constituted by two strands on nucleotides, made up of four building blocks each. The four building blocks are the chemical bases, namely the thymine (T) and cytosine (C). The other two are guanine (G) and adenine (A). Just the same way letters in an alphabetical order will order themselves differently to form different words, different organisms are built and maintained by different information depending on how the four building blocks are ordered and sequenced in code.

Remember, bases pair with compatible others to form pairs, C with G and A with T. In actual sense, a phosphate and sugar molecule plus the base are what constitute a nucleotide. The nucleotide is arranged as double helix spiral and ladder-like strands, with the ladder rungs constituted by the base pairs and the vertical piece of this ladder constituted by other two molecules, namely the phosphate and sugar molecules.     

DNA molecules subdivide during cell division, to make exact copies of themselves. During this process, duplicates of the sequence of bases are formed. Remember, each of the new cell formed is required to have a similar DNA to the parent one. A lot of DNA studies emphasize on hereditary knowledge because DNA serves this purpose. 

                                          
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