  Jablonka argues that the information in DNA has little in common with the information in an alarm call, a cloudy sky, or a chemical signal in a bacterial colony. In the latter cases, the receivers' reactions (or “responses”) to the source are adaptive for the receiver: “an alarm warns the bird there are predators around; the cloudy sky alerts the ape to the coming storm; the chemical alerts the bacteria to imminent starvation.” (p. 585). But in the case of DNA, the receiver does not seem to react in a way that adapts the cell to anything in particular. “Rather, DNA is simply ‘read’ by the cell, so it is not information in the same sense … DNA is information ‘about’ the cell or the organism, rather than ‘for’ the cell or the organism.” (Jablonka 2002, p. 585).  Nevertheless, Jablonka claims that her concept applies to genes even if it doesn't apply to DNA in general: