▁from ▁the ▁mother ▁and ▁one ▁gene ▁is ▁inherited ▁from ▁the ▁father . ▁Aut os om al ▁re cess ive ▁inheritance ▁pattern ▁is ▁defined ▁as ▁a ▁mut ation ▁present ▁in ▁both ▁copies ▁if ▁the ▁gene ▁in ▁order ▁for ▁a ▁person ▁to ▁be ▁affected ▁and ▁each ▁parent ▁much ▁pass ▁on ▁a ▁mut ated ▁gene ▁for ▁a ▁child ▁to ▁be ▁affected . ▁However , ▁if ▁an ▁infant ▁or ▁child ▁has ▁only ▁one ▁copy , ▁he ▁or ▁she ▁are ▁a ▁car rier ▁of ▁the ▁mut ation . ▁If ▁both ▁parents ▁are ▁carri ers ▁of ▁the ▁re cess ive ▁gene ▁mut ation , ▁each ▁child ▁have ▁a ▁ 2 5 % ▁chance ▁of ▁inher iting ▁the ▁gene . ▁ ▁Sp ont aneous : ▁A ▁new ▁mut ation ▁or ▁change ▁occurs ▁within ▁the ▁gene . ▁ ▁X - link ed : ▁When ▁a ▁trait ▁or ▁disease ▁happens ▁in ▁a ▁person ▁who ▁has ▁inherited ▁a ▁mut ated ▁gene ▁on ▁the ▁X ▁chrom os ome ▁( one ▁of ▁the ▁sex ▁chrom os ome ). ▁ ▁Mechan ism ▁ ▁Trans ient ▁Ne on atal ▁Di ab etes ▁M ell it us ▁( T ND M ) ▁ ▁T ND M ▁occurs ▁within ▁the ▁first ▁several ▁days ▁to ▁weeks ▁of ▁an ▁infant ' s ▁life . ▁In tra uter ine ▁growth ▁restriction ▁( I U GR ) ▁is ▁commonly ▁seen ▁in ▁affected ▁individuals ▁and ▁defined ▁as ▁poor ▁growth ▁of ▁an ▁un born ▁baby ▁while ▁in ▁his ▁or ▁her ▁mother ' s ▁w omb . ▁ ▁In ▁comparison , ▁of ▁P ND M ,