DNA
stands for deoxyribonucleic acid. The deoxy- in the DNA is a short term for
deoxyribose. The nucleic acid molecule has three parts; sugar, phosphate and a
base. The phosphate in the DNA acts as a backbone of the molecule. It is also
responsible for the DNA’s ‘double-helix’ structure. The base has four codes namely
adenine, thymine, cytosine and guanine. Adenine and thymine are base pairs
whereas cytosine and guanine are base pairs. DNA
is a nucleic acid that contains the genetic instructions used in the
development and functioning of all known living organisms whereas the RNA is a
single-stranded chain of alternating phosphate and ribose units with the bases
adenine, guanine, cytosine, and uracil bonded to the ribose.