Is there a term I can use to refer collectively to both exons and introns? By collectively, I don't mean ligated as with an unprocessed transcription product. I'm just writing about exons and introns and getting frustrated that I keep on having to write "exons and introns", wishing there was a more concise term I can use in the place of that phrase.
For example, the term I am looking for would fill in the following blank perfectly.
The gene has 5 exons and 4 introns, so it has 9 _____.