Figure 1: Squint has long-range effects, whereas Cyclops has short-range effects. Figure 3: The long-range effect of Sqt does not depend on the induction of the endogenous cyc or sqt genes. Cyc–Sqt ...

Decapentaplegic (DPP) exerts its long-range influence on wing patterning by acting 'directly' at a distance as a gradient morphogen, rather than 'indirectly' as a short-range inducer of other signals.

Morphogens are signaling molecules that are vital for cell differentiation. These molecules directly influence cell differentiation, inducing specific cellular responses in relation to their ...

CINCINNATI – Scientists at Cincinnati Children's Hospital Medical Center believe they have answered some critical questions that address how signaling molecules, called morphogens, work. Morphogens ...