Complex sentence: DNA is made up of a double helix of two strands, and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semiconservative replication.
Split into simpler sentences: DNA is made up of a double helix of two complementary strands. Each strand of the original DNA molecule serves as a template for the production of its counterpart, a process referred to as semiconservative replication.