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Table 2 The distribution of Bcd profiles over the four mechanisms of hb border formation and two families described in the text.

From: Mechanisms of gap gene expression canalization in the Drosophila blastoderm

  AA AM MA MM
1st family 66 2 1 0
2nd family 0 17 0 1
  1. The mechanisms are labeled as follows: attractor-attractor switch (AA; Fig. 4A), attractor-manifold switch (AM; Fig. 4B), manifold-attractor switch (MA; Fig. 4C), and manifold-manifold switch (MM; Fig. 4D).