Examples of MARCM NB clones that are null for the caspase dronc. (A-E) Lineages in which one cell type is typically represented by only one or two individuals. Blocking cell death results in the addition of more neurites from the cells of the rare phenotype (red arrow). (A) Lineage 0, (B) lineage 4, (C) lineage 14, (D) two examples of lineage 21, (E) lineage 20/22. (F-L) Monotypic lineages having one neurite bundle (yellow arrow) acquire a new neuronal class (red arrow) when cell death is blocked. (F) Lineage 5, (G) lineage 15, (H) lineage 2, (I) lineage 10, (J) lineage 17, (K) lineage 24, (L) lineage 23. Wild-type examples are included in Fig. 9.