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

Signal sequence
Amino acid sequence
Shine-Dalgarno sequence
Signature sequence

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Micro Organisms
Eukaryotic cell organelles first emerged

from a specialized lineage of cells within the kingdom Protista
when prokaryotes engulfed each other and became interdependent
just before the origin of the animal and fungal kingdoms
when bacteria made their first attempts at reproduction

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