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.
Basically, DNA is made of nucleotide bases with some sugars and phosphate molecules. In order to understand modern genetics a person must understand the structure and function of DNA as the molecule of inheritance.ritten by: Rafaelâ¢edited by: Paul Arnold â¢updated: 2/8/2010. The structure and function of DNA are highly interrelated. From the composition of base pairs to their spacial arrangement understanding the structure and function of DNA as the molecule of inheritance is of paramount importance to grasp modern genetics.