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A posterior shift in the Hunchback gradient is observed in nanos mutants. (A) An oocyte lacking mnanos is modeled. Note the absence of green pipe cleaners compared with Figure 4A. (B) With no Nanos to repress translation of mhunchback, Hunchback protein is located in the posterior end of the embryo. Note the presence of red beads in the posterior end of the embryo compared with Figure 4B.
