Which is actual evidence supporting the endosymbiotic theory for the origin of eukaryotes?
Correct answer: C. Mitochondria and chloroplasts have their own DNA
- A. Fossil evidence suggest early eukaryotes ate Proteobacteria
- B. Free-living mitochondria still exist in some environments
- C. Mitochondria and chloroplasts have their own DNA
- D. All of the above are true
Explanation
The evidence to support the endosymbiotic theory is that mitochondria and chloroplast have their own DNA and are capable of reproducing independently from the cell.
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Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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