The primary function of DNA molecules is the long-term storage of data. DNA is also called the genetic code and compared with a recipe or a set of blueprints. This is because it contains all the construction details for other components of cells, such as RNA molecules and proteins.

DNA is stored in the nucleus of every cell in your body (except red blood cells which do not have nuclei). The number of cells in the human body is unknown though it is estimated to run in billions. Furthermore there is no evidence to indicate any difference in cell density on grounds of gender. Logically though, the number of cells contained would depend on size of the organism. The larger the size of the body, the more the number of cells it will contain.  The greater the number of cells, the more the DNA it contains.

The packaging for our genetic material is known as chromosomes or DNA. Most cells in the human body carry 46 chromosomes. There are billions of cells that are the building blocks for the many organ systems and tissues in our body. The 46 chromosomes in each cell come in 23 matching pairs. One chromosome in each pair is inherited from each of our parents. These 46 chromosomes can be organized by size and patterns of the dark and light bands into 23 pairs.

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