True of autosomal dominant polycystic kidney disease I and II respectiely -The most likely site of ectopic opening would be -

Three forms of ADPKD have been identified. ADPKD-1 accounts for 85% of cases its gene is found on chromosome 16p ADPKD-2 its gene has been mapped to chromosome 4q it appears to have a later age of onset of symptoms and renal failure than ADPKD-1 ADPKD-3 it has not been mapped to a gene uptill now.