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The Deoxyribonucleic Acid (DNA
The Deoxyribonucleic Acid (DNA)
The deoxyribonucleic acid commonly referred to as the DNA, is the hereditary material in all the human beings. Studies have shown that almost all cells in human body have the same DNA. DNA is located in the cell nucleus and due to its location it`s called nuclear DNA. Apart from the nucleus DNA can also be located in the mitochondrial where it`s referred to as mitochondrial DNA. The DNA has a unique structure and the diameter of a DNA molecule is 2 nm.
The Structure of DNA
The structure of the DNA is composed of four nucleotides. Each nucleotide contain: adenine, cytosine, thymine or guanine (Watson, Baker, Bell, & Gann, 2014). The amount of adenine is equal to the amount of thymine and the guanine which is equal to the amount of cytosine. The amount of purines is equal to the amount of the pyrimidine. DNA is a double stranded structure and has stands which are opposite and not parallel to each other (Watson, Baker, Bell, & Gann, 2014).
The thymine and the adenine are linked to ea