RNA polymerase<span> moves from the 3′ end of the template strand, creating an </span>RNA<span> ... of the DNA double helix; other genes </span>use<span> the other strand as the template</span>. ... or similar base sequences, that appearjust before<span> the first base transcribed ... The enzyme then unwinds DNA and </span>begins<span> the synthesis of an</span>RNA<span> molecule.</span>