<human>:  What is the structure of a DNA molecule and how does it shape the function of life?
<bot>: The structure of a DNA molecule consists of two strands connected by a series of chemical bonds known as a double helix. These two strands contain the instructions that guide the synthesis of proteins, which are the building blocks of all life. The two strands are made up of four molecules known as nucleotides, and they are arranged in a specific order. Each nucleotide includes a sugar, a phosphate group and a nitrogen-containing base. The sequence of these bases, which are represented by the letters A, C, G, and T, provides the instructions for the cell. This structure allows for terrific stability as well as a wealth of genetic information to be stored. Through a process of transcription, this information is used to create proteins that are essential for the functioning of all life forms.