What I'm interested about is whether environmental changes' effects are coded into the genome, like metamorphosis, deciduous plants. Can it be explained by morphogens, or it's something completely different?

  • $\begingroup$ I tried to narrow it a bit. I'm sorry, if I was not successful enough. $\endgroup$ – FloriOn Mar 22 '15 at 20:42
  • $\begingroup$ Do you know about epigenetic? $\endgroup$ – cagliari2005 Mar 22 '15 at 22:29
  • $\begingroup$ Something you might be interested in is circadian clocks, which are literally genetically encoded timekeeping devices. Although they can be entrained by environment, they can also "free run" in constant conditions cycling in the absence of light/dark cues. The core circadian clock in photosynthesizing bacteria called cyanobacteria consists of just three proteins. You can isolate them from the rest of the cell, and just like a watch taken from your wrist, these proteins will continue to oscillate in a 24-hour cycle. If that isn't a genetically encoded "concept of time," I don't know what is! $\endgroup$ – A. Kennard Mar 23 '15 at 9:43

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