Answer -The connection between Protein, DNA, Traits and Genes is DNA has Chromosomes or Chromatin which is strands outside of the Nucleolus. It has coding that will be used in Protein Synthesis and which then we go into Genes which is in the Nucleolus that has controls and gives coding of Traits and other functions.
Reasoning - These are specific reasoning and pretty much sums of what are the story behind a cell.