As far as "junk DNA" is concerned, I think it is always good to remember...
There are two types of non-coding DNA of unknown origin or purpose:
1) Garbage DNA and
2) Junk DNA
As in life ... GARBAGE is something you throw out
and
JUNK is something you keep.
Just a thought,
Steve
Stephen Karl
Department of Biology
University of South Florida
4202 East Fowler Ave, LIF 169
Tampa, Florida 33620-5150
Voice (813) 974-1592
Fax (813) 974-3263
EMail Karl at .chuma.cas.usf.edu