??? ??? ?? ? ? ?? ?? ??? ????? ??? ?? ??? ???? ??? ???? ?????.Any retinitis pigmentosa by which the reason for the illness is often a mutation within the RHO gene. [from MONDO]A chromosomal abnormality consisting on the absence of on the list of copies of chromosome 7 in somatic cells. [from NCI]???? ???? ?? ?????, ??, ?? ? ??(??)??? ???????.Here