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.
What is the main function of nucleic acids? DNA, or deoxyribonucleic acid, is essentially the storage unit for the building blocks of life. The RNA, or ribonucleic acid, uses the information stored in the DNA to facilitate and regulate protein synthesis, according to Tutorvista.com.