10
AssignmentMultiple Choice

Prokaryotic and Eukaryotic Cells

Question 10 • PA Human Anatomy & Physiology A 2026-2027 SMITH IC

Which statement is evidence used to support the endosymbiotic theory?Mitochondria and chloroplasts contain their own DNA.Mitochondria and chloroplasts are surrounded by one membrane.Mitochondria and chloroplasts reproduce similar to eukaryotic cells: through mitosis.

Answer
A
Mitochondria and chloroplasts contain their own DNA.
B
Mitochondria and chloroplasts are surrounded by one membrane.
C
Mitochondria and chloroplasts reproduce similar to eukaryotic cells: through mitosis.

Explanation

Mitochondria and chloroplasts contain their own DNA, which supports the idea that they originated as free-living bacteria that were taken in by ancestral cells. They also reproduce by a process similar to bacterial cell division, not by mitosis. The statement that they are surrounded by one membrane is incorrect; they have two membranes.

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