▁Un like ▁B MP R 1 A ▁null ▁m ice , ▁which ▁die ▁at ▁an ▁early ▁emb ry onic ▁stage , ▁B MP R 1 B ▁null ▁m ice ▁are ▁vi able . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁▁ ▁Category : B one ▁morph ogen etic ▁protein ▁Category : Cl ust ers ▁of ▁different iation ▁Category : GS ▁domain ▁Category : Re cept ors ▁Category : Trans m emb rane ▁re cept ors ▁Category : S / T ▁domain ▁Category : EC ▁ 2 . 7 . 1 1 <0x0A> </s> ▁Following ▁are ▁the ▁results ▁of ▁the ▁Ukrain ian ▁Football ▁Am ateur ▁League ▁ 2 0 0 2 ▁season . ▁ ▁Part icip ation ▁is ▁restricted ▁to ▁the ▁regional ▁( O blast ) ▁champions ▁and / or ▁the ▁most ▁regarded ▁team ▁by ▁the ▁respective ▁regional ▁association . ▁ ▁This ▁season ▁competition ▁consisted ▁of ▁four ▁stages ▁as ▁the ▁previous . ▁First ▁two ▁stages ▁were ▁organized ▁in ▁regional ▁principal ▁in ▁groups ▁of ▁four ▁or ▁five ▁and ▁were ▁played ▁in ▁two ▁r ounds ▁where ▁each ▁team ▁could ▁play ▁another ▁at ▁its ▁home ▁ground . ▁The ▁semif inals ▁and ▁final s , ▁on ▁the ▁other ▁hand , ▁were ▁played ▁in ▁one ▁round ▁and ▁this ▁year ▁were ▁organized ▁in ▁the ▁city ▁of ▁K akh ov ka . ▁On ▁the ▁first ▁stage ▁each ▁group ▁w inners ▁and ▁their ▁immediate ▁run ners - up ▁were ▁to ▁advance ▁to ▁the ▁next ▁part ▁of ▁the ▁competition . ▁Due ▁to ▁few ▁teams ▁joining ▁the ▁professional ▁competition ▁the ▁format ▁was ▁adjust ed ▁and ▁to