User:Bcanton/RegistryObjects4

Since we are all about programming cells, we need code. The code we use isn't RNA or protein or small molecules, instead it's the specific sequence of a DNA molecule since that is the way cells store most of their code. We write code by putting pieces of DNA together, each of which has a particular function. In other words, the parts we use to build systems are DNA molecules. That's why DNA molecules in the registry are referred to as parts rather than DNA. Also note that sometimes a single part can also be a device. For example, a constitutively active promoter has a well-defined output (transcription rate) so it should also be described as a device. Finally note that the Registry doesn't have entries for mRNA or small molecules. We should, and we'll get to those as soon as we can. Go back to the start->