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 structure and function. Short for deoxyribonucleic acid, DNA is a molecule that contains the genetic code for each organism. Like a blueprint, stores the essential instructions for building cells and regulating their functions.hort for deoxyribonucleic acid, DNA is a molecule that contains the genetic code for each organism. Like a blueprint, stores the essential instructions for building cells and regulating their functions.