16. How do the two
complementary nucleotide
chains of the DNA facilitate
the replication process of the
molecule?

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The fact that the DNA molecule is made
of two chains whose
nitrogen- bases form
hydrogen bonds facilitates the
duplication of the . During the
DNA , the binding of the two
chains is and each of them
serves as a template for the formation
of a new nucleotide sequence along it,
with the help of the enzyme
polymerase and obeying the pairing rule
A-T, C-G. At the end of the process two
helix of DNA are produced, each
made of an template chain and
of a new synthesized
chain.