How does a prokaryotic cell differ from a eukaryotic cell? Which evolved first?

timer Asked: Jul 9th, 2014
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Question Description

  1. How does a prokaryotic cell differ from a eukaryotic cell? Which evolved first?

Tutor Answer

School: Rice University

Eukaryotic Cell

Prokaryotic Cell

Number of chromosomesMore than oneOne--but not true chromosome: Plasmids
Cell TypeUsually multicellularUsually unicellular (some cyanobacteria may be multicellular)
True Membrane bound NucleusPresentAbsent
ExampleAnimals and PlantsBacteria and Archaea
Genetic RecombinationMeiosis and fusion of gametesPartial, undirectional transfersDNA
Lysosomes and peroxisomesPresentAbsent
MicrotubulesPresentAbsent or rare
Endoplasmic reticulumPresentAbsent

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Tutor went the extra mile to help me with this essay. Citations were a bit shaky but I appreciated how well he handled APA styles and how ok he was to change them even though I didnt specify. Got a B+ which is believable and acceptable.

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