This was the first large part of the genome that was sequenced, in 1981: Cambridge Reference Sequence. Presumably they picked it because it is short and does not undergo crossover.
About 16.6 kbp:
- 13 coding genes
- 24 non-coding genes
TODO: many places say "exactly" 16,569, it seems that variable number tandem repeat are either rare or don't occur!
- pubmed.ncbi.nlm.nih.gov/2881260/ 1989 reports a single length polymorphism