The completed sequence covers 33.4 Mb of 22q with 11 gaps and
has been estimated to be accurate to less than 1 error in 50,000
bases, by internal and external checking exercises. The largest
contiguous segment stretches over 23 Mb. From our gap-size
estimates, we calculate that we have completed 33,464 kb of a total
region spanning 34,491 kb and that therefore the sequence is
complete to 97% coverage of 22q.