Biomedical Engineering Reference
In-Depth Information
Figure 1.3 Bristles and PCP. A is an SEM of a wild-type thorax and B a fz thorax. C is a
wild-type femur and D an fz femur. Arrows point to bracts. E is a wild-type tarsus and F
an fz tarsus. The arrow points to a segment with a mirror image duplication and the
arrowhead to a bulge.
Figure 1.4 The eye and PCP. A is a cartoon of the adult retina with Northern (blue) and
Southern (red) hemisphere ommatidia in mirror image across the equator. B shows how
the pattern in the adult retina is derived by rotation of the developing retina. The crucial
R3 (blue) and R4 (green) cells are marked.
