Conserved sequences

Non-coding DNA, highly conserved unique sequences (HCS)

Of recent date is the discovery that in the non-coding DNA is stretches of unique DNA sequences that are considerably conserved in evolution:

they show as little variation as the unique DNA sequences to the coding DNA for functional genes.
Non-coding DNA

These Highly conserved Sequences, which lacks the known elements required by the coding DNA, is not known the importance of (2005), but they may contain information of fundamental biological importance.