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Cyanobacteria and heterotrophic bacteria...

Cyanobacteria and heterotrophic bacteria have been clubbed together in eubacteria of kingdom-Monera as per the 'five kingdom classificatin' even though the two are vastly different from each other. Is this grouping of the two types of taxa in the same kingdom justified ? If so, why ? Discuss the cellular composition of cyanobacteria and heterotrophic bacteria that make them introduced in eubacteria.

Text Solution

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Both have been clubbed together due to:
(i) Do not possess well defined nucleus as nucleus lacks nucleolus and nuclear membrane.
(ii) DNA lies freely in cytoplasm
(iii) Both bear 70S type of chromosmoses.
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