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 Function of the Promoter in DNA Transcription? If you have ever taken a biology course, you probably know about DNA. These molecules contain the information necessary to create every part of any given biological organism, from the single-celled amoeba to highly complex organisms such as mammals.