Table 4 Unconventional features observed in phylogenetic trees constructed by students
From: Student construction of phylogenetic trees in an introductory biology course
Feature | Group unit exam (n = 23) | Individual final exam (n = 77) | Group final exam (n = 22) |
|---|---|---|---|
Variable orientation | 7 (30Â %) | 15 (19Â %) | 4 (18Â %) |
Taxa on branches | 3 (13Â %) | 8 (10Â %) | 2 (9Â %) |
Arrowhead branches | 1 (4Â %) | 6 (8Â %) | 0 (0Â %) |
Displaced outgroup | 2 (9Â %) | 5 (6Â %) | 1 (5Â %) |