Origins of Cell Compartmentalization

AP Biology· difficulty 3/5

Evidence supporting the endosymbiotic origin of mitochondria includes all of the following <strong>except</strong>

  • A

    Mitochondria have their own circular DNA

  • B

    Mitochondrial ribosomes resemble bacterial ribosomes

  • C

    Mitochondria contain a nucleus

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  • D

    Mitochondria have double membranes

Explanation

Mitochondria do not have a nucleus. The other three are classic pieces of evidence for engulfed-bacteria ancestry.

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