CPX079: 0.1 inch (2.54 mm) pitch polarizing key. Insert used to block hole of header connector, for correct connection / orientation to motherboard pin-outs.
The function of DNA in a cell is to code the way proteins turn genes on or off. the function of DNA is to make the proteins. DNA is the foundation of life. It's a complex molecule made up of four types of bases, cross connected like a staircase, and twisted into a spiral.
DNA also contains all the genetic coding which is used to control functions, behavior and development of an organism. DNA is also used as a long term storage device to store the genetic instructions.These instructions must be correct so the DNA can make an exact copy of itself. A: replication   A: dna cells give direnctions to the nucleius and plans what yo â¦ ur going to function all your life   A: The DNA of a cell acts as instructions for all the processes of a cell. Basically it is a spiral of information that the cell uses for everything.