The anterior-posterior polarity of each segment of an animal. As found for the Drosophila fly, there are segment polarity genes, mutations of which cause a disruption in pattern formation in each segment
. See Hox genes, Segmentation
The anterior-posterior polarity of each segment of an animal. As found for the Drosophila fly, there are segment polarity genes, mutations of which cause a disruption in pattern formation in each segment
. See Hox genes, Segmentation