Fig. 3. Double-mutant analysis between mid and insc,
numb, pdm and wg. Drosophila embryos
of the indicated genotypes and ages were stained with antibodies to Eve
(A,B,E-J) or Eve+Zfh1 (C,D). Anterior is
up; vertical lines indicate the midline. Arrow, RP2; arrow with asterisk,
eRP2; smaller arrow, sib; arrowhead indicates missing RP2 lineage; arrowhead
with asterisk indicates missing eRP2 lineage.