Final answer:
During DNA replication, each of the two strands serve as a template for new strands to be copied. The new DNA copies have an identical sequence and are divided equally into daughter cells.
Step-by-step explanation:
During DNA replication, each of the two strands that make up the double helix serves as a template from which new strands are copied. The new strand will be complementary to the parental or "old" strand. Each new double strand consists of one parental strand and one new daughter strand. This is known as semiconservative replication. When two DNA copies are formed, they have an identical sequence of nucleotide bases and are divided equally into two daughter cells.