What is DNA and how is the double helix constructed?
DNA is something inside of you. We all have it. It is what makes
us up.
For example; our spit is DNA. Our cells are DNA. Even our skin
is DNA.
Everyones DNA is different. But families DNA is the most
similar, because you are related, but still never the same.
And as for a 'double helix constructed' it is a molecule that
makes up two double helex or a spiril. (: