????? ??? ??, ?? ??? ??? ??? ? ?? ?? ??????. ???? ???? ??? ? ?? ?? ??? ?????.Any retinitis pigmentosa during which the reason for the condition is usually a mutation while in the RHO gene. [from MONDO]A chromosomal abnormality consisting of your absence of on the list of copies of chromosome seven in somatic cells. [from NCI]?? ??? ?? ?? ??? ???