No One Is Quite Sure How Eukaryotic Cells First Appeared

question 17

Multiple Choice

No one is quite sure how eukaryotic cells first appeared on Earth.Three hypotheses have been proposed for ongoing study: the eukaryote-first hypothesis, the nucleus-first hypothesis, and _________.(Outcome #4b)

• A)an hypothesis that begins with mitochondria changing into a nucleus in a prokaryotic cell
• B)an hypothesis that begins with mitochondria developing in a eukaryotic cell that later lost its nucleus
• C)an hypothesis that begins with mitochondria developing in a prokaryotic cell that later acquired a nucleus

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Definitions:

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