Which of the following is not true about a bacterial colony growing on an agar plate?

A. They are visible without the aid of the microscope
B. Bacterial cells found in one colony often belong to one species
C. Different colonies have different colours
D. Only one species of bacterial colony can grow on culture at any time
E. Colonies growing on an agar plate under the same conditions must belong to one species

Correct Answer:

Option C – Different colonies have different colours