Micro Organisms
Which of the following sequences has helped in identifying eukaryotes, eubacteria and archeabacterial cell types?

Signature sequence
Amino acid sequence
Shine-Dalgarno sequence
Signal sequence

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

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

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Micro Organisms
Archeal cells usually do not contain peptidoglycan, rather contain pseudo-peptidoglycan which is mainly composed of

N-acetylmuramic acid and D-amino acids
N-acetyltalosaminuronic acid and D-amino acids
N-acetyltalosaminuronic acid and L-amino acids
N-acetylmuramic acid and L-amino acids

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