Fig. 2. Phenotypes from maternal loss of tna function. Prepupa (A) and young pupa (B) that lack both maternal and zygotic tna functions. These individuals are tna¹/Df(3L)lxd6 [tna^-] and very few individuals reach the pharate adult stage without paternal rescue. One of the males that reached the pharate adult stage is shown in C. The first leg has a smaller sex comb with fewer sex comb teeth (inset in C) suggesting a reduction in Scr function. (D) A tna¹/+ male that lacked maternal Tna function but was rescued by the paternally-inherited wild-type allele. The paternally rescued males have sex combs with normal numbers of sex comb teeth (inset in D).