Group I | Group II |
P. Coccus | 1. Treponema |
Q. Rod | 2. Bacillus |
R. Comma | 3. Neisseria |
S. Spiral | 4. Vibrio |
Coccus refers to spherical bacteria, e.g., Neisseria. Rod morphology is seen in Bacillus. Comma-shaped bacteria are represented by Vibrio. Spiral morphology is characteristic of Treponema.