New molecules of dna are synthesized by copying the genetic sequence of another molecule of dna, which we call the template, so that

it separate in two new molecules.

Explanation:

Duplication of DNA is formed when a template sequence of DNA, that is a double helix, first will separate, then another enzyme is going to complete each separate string with the complementary nucleotide, so at the end of the process you have two identical molecules of DNA.  

maybe the spark is gone, love is a weird emotion and there is a possibility he may have found somebody else.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).