Micro Organisms
A characteristic of protein synthesis in both the archaea and eukarya is

the initiator tRNA is charged with N-formyl-methionine
translation is inhibited by diphtheria toxin
proteins are synthesized from D-, rather than L-, isomers of amino acids
transcription and translation are coupled

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Micro Organisms
Which of the following best represents the hierarchy of levels of biological classification?

Kingdom, phylum, family, class, order, genus, species
Phylum, kingdom, class, order, genus, species, family
Class, order, kingdom, phylum, family, genus, species
Kingdom, phylum, class, order, family, genus, species

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

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

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