102D1--2;[]
102D1--2;[]
Df(4)FrIVΔA is associated with sterility when heterozygous with In(4)ciD. Df(4)FrIVΔA/C(4)RM males are usually fertile.
Male fertile. The rate of transmission of the Df(4)FrIVΔA chromosome is similar to that of a normal fourth chromosome.
Terminal deficiency. Df(4)FrIVΔA retains a copy of P{RS5} at 102C-102C5 but lacks chromosome 4 material distal to 102D1-102D2.
All limits from polytene analysis (FBrf0101865)