??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.Any retinitis pigmentosa wherein the cause of the sickness can be a mutation in the RHO gene. [from MONDO]A chromosomal abnormality consisting in the absence of one of the copies of chromosome seven in somatic cells. [from NCI]???? ???? ?? ?????, ??, ?? ? ??(??)??? ???????.???? ??? ???