The image illustrates the endosymbiotic theory, which proposes that mitochondria and chloroplasts originated from free-living prokaryotes engulfed by a host cell. Scientific theories gain credibility when they are falsifiable —i.e., when they make predictions that can be tested and potentially proven wrong.
Which of the following, if discovered, would most strongly falsify the endosymbiotic theory?

Question

The image illustrates the endosymbiotic theory, which proposes that mitochondria and chloroplasts originated from free-living prokaryotes engulfed by a host cell. Scientific theories gain credibility when they are  falsifiable —i.e., when they make predictions that can be tested and potentially proven wrong. 
 Which of the following, if discovered, would most strongly falsify the endosymbiotic theory?

Accepted Answer

Finding a eukaryotic species in which mitochondria and chloroplasts lack any DNA or ribosomes.

Answer

Discovering that mitochondria and chloroplasts have ribosomes similar to bacterial ribosomes.

Answer

Identifying circular DNA in mitochondria and chloroplasts that codes for some of their own proteins.

Answer

Observing that some prokaryotes can live inside other cells without being digested.

Answer

Discovering that mitochondria and chloroplasts divide independently of the cell cycle.

Answer

Finding that mitochondria and chloroplasts perform energy conversions such as ATP and glucose synthesis.

Crowdly

The image illustrates the endosymbiotic theory, which proposes that mitoch...

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