Junk dna : n : stretches of DNA that do not code for genes; "most of the
genome consists of junk DNA" [syn: junk DNA]
From University of Miami School of Medicine
Junk dna :
Junk DNA: Noncoding regions of exons surrounded by vast stretches of "junk DNA."
Exons are the regions of DNA that contain the code for producing the protein . Each exon codes for a specific portion of the complete protein. In humans and some other species, the exons are
separated by long regions of junk DNA.
However, junk DNA has been found to be even more conserved than protein-coding regions of the DNA in humans and other mammalian species. The extent of conservation indicates that there is some
function for junk DNA that remains to be determined. Junk DNA may prove not to be junk.
