??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.Any retinitis pigmentosa through which the cause of the condition is actually a mutation while in the RHO gene. [from MONDO]A chromosomal abnormality consisting of your absence of among the list of copies of chromosome 7 in somatic cells. [from NCI]????? ?????? ?????? ?? ?? ????? ??? ?