Explanation:

The double helix feature of DNA makes it uniquely suited to store and transmit genetic information from generation to generation.
The double helix shape allows for DNA replication and protein synthesis to occur.
In these processes, the DNA unwinds and opens to allow a copy of the DNA to be made. In DNA replication, the double helix unwinds and each separated strand is used to synthesize a new strand. As the new strands form, bases are paired together until two double helix DNA molecules are formed from a single double helix DNA molecule. DNA replication is required for the processes of mitosis and meiosis to occur.