Trypanosoma is polymorphic i.e. it exists in different forms in the successive stages of its life cycle. These are Leishmania, Leptomonad, Crituidial and trypanosomal stages.
533.
The hereditary material present in the bacterium Escherichia coli is
In (E.coli) double stranded DNA is present. Notes : E. coli is a Gram-negative, facultative anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms. Most types of E. coli are harmless and even help keep your digestive tract healthy. But some strains can cause diarrhea if you eat contaminated food or drink fouled water.
Archaebacteria differ from other bacteria in having a different cell wall structure. They lack peptidoglyan in cell wall and possess a monolayer of branched fatty acids attached to glycerol by ether bonds in their cell membranes.