The answer is template strand; daughter strand.
In DNA replication, each individual parent strand acts as a template strand for the synthesis of a daughter strand. DNA replication is a process of producing of two identical copies of DNA from the original DNA. DNA molecule consists of two strands and each strand serves as a template strand for the synthesis of a daughter cell. DNA polymerase binds to the origins of replication and synthesises daughter strands by adding complementary nucleotides.