Principles Of Mendelian Inheritance

In bacterial classification based on flagellar arrangement:
- Monotrichous: Single flagellum at one end.
- Lophotrichous: A tuft of flagella at one end.
- Amphitrichous: Single flagellum at both poles (one at each end).
- Peritrichous: Flagella all around the cell.
Hence, amphitrichous bacteria have one flagellum at each pole, enabling them to reverse direction quickly and swim efficiently.

- I: Incomplete dominance (e.g., Snapdragon) – Both phenotype and genotype show 1:2:1.
- III: Codominance (e.g., Seed coat in lentil) – Shows 1:2:1 in both.
- II and IV: Show classic 3:1 phenotype, 1:2:1 genotype, but not both.