Multiple Choice
Which of the following statements supports the theory of endosymbiosis?
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5. Cell Components
Endosymbiotic Theory
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Which of the following is not evidence of the endosymbiotic theory?
A
Mitochondria and chloroplasts have their own DNA
B
Mitochondria and chloroplasts replicate independently of the cell
C
Mitochondria and chloroplasts are found in all prokaryotic cells
D
Mitochondria and chloroplasts have double membranes
Verified step by step guidance1
Understand the endosymbiotic theory: This theory suggests that mitochondria and chloroplasts originated from free-living prokaryotic cells that were engulfed by ancestral eukaryotic cells.
Identify key evidence supporting the theory: Mitochondria and chloroplasts have their own DNA, similar to prokaryotic cells, which supports the idea that they were once independent organisms.
Consider the replication process: Mitochondria and chloroplasts replicate independently of the cell, akin to how prokaryotic cells divide, further supporting their prokaryotic origin.
Examine the structural evidence: Mitochondria and chloroplasts have double membranes, which is consistent with the engulfing mechanism proposed by the endosymbiotic theory.
Evaluate the statement about prokaryotic cells: The claim that mitochondria and chloroplasts are found in all prokaryotic cells is incorrect, as these organelles are characteristic of eukaryotic cells, not prokaryotic cells.
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