The genetic makeup of an organism is known as its genotype. The genotype refers to the set of traits found within the cells of living organisms. These traits, known as the genetic code, are passed from one generation to the another during cell division and reproduction.
The genetic code of an organism is stored in strands of DNA molecules, contained as linear sequences consisting of adenine, guanine, cytosine and thymine. Each of these nitrogenous bases, represented by the letters A, G, C and T, are arranged in sequences of three-letter codes, referred to as triplets or codons. There are 64 combinations of three-letter codes of these bases.