AN-190601215420-DNA Structure and Replication.docx - Running head BIOLOGY 1 DNA Structure and Replication Name of Student Institutional Affiliation

AN-190601215420-DNA Structure and Replication.docx -...

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Running head: BIOLOGY 1 DNA Structure and Replication Name of Student Institutional Affiliation
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BIOLOGY 2 DNA Structure and Replication DNA is an acronym which stands for deoxyribonucleic acid. It stores the genetic material, thereby determining the genetic characteristics of individuals. It is composed of genetic instructions which program the entire body activities. A nucleotide is made up of three parts, namely; a 5- carbon sugar molecule (deoxyribose), 1 of the four nitrogen bases and a phosphate group. The nitrogenous base is the part which carries information (CC, 2012). The sugar is responsible for bonding with the next molecule when the oxygen atom is exposed. Phosphate group forms part of ATP, which is an energy molecule. The four nitrogen bases include Guanine, Cytosine, Adenine, and Thymine. However, the RNA has Uracil instead of Thymine. DNA is referred to as a double helix because the polynucleotide molecule that forms it does not exist singly instead as a pair of molecules that are tightly held together(CC, 2012). They appear to be intertwined, creating a double spiral staircase.
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