Micro Organisms
Which of the following is not true for eukaryotic cells?

Chloroplasts and mitochondria contains 70S ribosomes
Chromosomes contain histones
Gas vacuoles are present
Nucleus is bounded by nuclear membrane

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Micro Organisms
The unifying feature of the archaea that distinguishes them from the bacteria is

absence of a nuclear membrane temperature
habitats which are extreme environments with regard to acidity
presence of a cell wall containing a characteristic outer membrane
cytoplasmic ribosomes that are 70S

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