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Fig. 4. prd is required to promote cell proliferation in accessory gland development. Accessory glands are shown that have been dissected from Df(2L)Prl prd-mf9.7/prd2.45; prdRes/+ males (A), carrying an additional copy of a UAS-Prd (B), UAS-dMyc (C), UAS-CycE (D), or UAS-P35 (E) transgene, or hemizygous for Df(3L)H99 (F), uncovering the proapoptotic genes reaper, grim and hid. Note that one copy of prdRes, as used here, rescues about 20%, whereas two copies, used in Fig. 1C,F, rescue about 75% of prd mutants to adult males that have no accessory glands. The rescue efficiencies are not affected by the presence of a prd-mf9.7 transgene, nor does the presence of an additional copy of prdRes augment the size of the accessory glands shown in A.