Which of the following statements regarding the endosymbiosis theory is TRUE? A) Chloroplasts and mitochondria used to have smaller genomes when they were free-living organisms, but now need more genes in order to carry out tasks for their eukaryotic hosts. B) There can sometimes be transfer of genes between closely related species. C) The endosymbiosis theory tells us how the eukaryotic cell first arose. D) Cyanobacteria arose when a chloroplast was lost from a primitive eukaryote due to a mistake in cell division. E) Strong evidence in support of the theory is that the DNA of chloroplasts and mitochondria is very closely related to DNA sequences from 2 different groups of bacteria.
Added by Mark C.
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Step 1: The endosymbiosis theory explains the origin of eukaryotic cells from prokaryotic cells. Show more…
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Which of the following statements would not be consistent with the theory for the endosymbiotic origin of mitochondria and chloroplasts? and why? A. Mitochondria and chloroplasts have their own DNA enclosed within a nuclear envelope. B. The composition of the outer membrane of chloroplasts and mitochondria is similar to the plasma membrane of eukaryotic cells. C. The composition of the inner membrane of chloroplasts and mitochondria is similar to the plasma membrane of prokaryotic cells. D. Mitochondria and chloroplasts have some enzymes unique to them. E. Genes encoded within mitochondria and chloroplast indicate a closer relationship to prokaryotes than do most nuclear genes
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