Arrange the following stages of DNA replication in its proper order by indicating numbers 1 to 6.
____ a.) Free nucleotide pairs through complementary base pairing.
____ b.) Exact copy of DNA was produced.
____ c.) Parent DNA unzips and splits into two strand.
____ d.) DNA polymerase signals the site where new nucleotides will pair off.
____ e.) An enzyme helicase breaks the bond betwen niteigen bases.
____ f.) The 2 strands zip and form a helical structure or double helix.