Primers are used in both DNA replication and PCR analyses, what are they? A. Single stranded sequences of nucleotides which are complementary to a target sequence. B. Molecules that stabilise the replication fork. C. Short strands of DNA produced by DNA Primase.D. RNA strands that are random sequences of nucleotides on the leading strand. E Sequences of nucleotides that allow RNA polymerase to attach to promotors.