Answer:
Non-coding regions
Explanation:
Genes are segments of DNA that undergoes expression into functional products called PROTEIN. However, these genes contain both the parts or regions that encode proteins and those that don't. The part that encodes proteins are called coding sequences while those that don't encode proteins, which make up the bulk of the gene are called Non-coding regions.
When a gene undergoes expression, it is first transcibed into an RNA molecule, then translated into proteins. The coding regions of the gene will be translated while the non-coding regions will be spliced out
(introns) post-transcriptionn or be used to make RNA.
