Which of the Following Genera Does NOT Undergo Differentiation

Question

Which of the following genera does NOT undergo differentiation?
A) Anabaena
B) Bacillus
C) Clostridium
D) Escherichia
E) Streptomyces

Accepted Answer

Escherichia is a unicellular organism that does not undergo differentiation. The other genera listed are known to undergo differentiation into various morphological or functional forms. Anabaena is known for its ability to form heterocysts, Bacillus can form endospores, Clostridium can form endospores and also exhibit pleomorphism, and Streptomyces are known for their ability to form aerial mycelia and spores.