Which statement does not support the endosymbiotic theory?
1.) Mitochondria and Chloroplasts reproduce independently from the cell.
2.) Mitochondria and Chloroplasts contain their own ribosomes.
3.) Mitochondria and Chloroplasts have DNA that resembles bacterial DNA.
4.) Mitochondria and Chloroplasts are much larger than prokaryotic cells.
Ans. 4.) Mitochondria and Chloroplasts are much larger than prokaryotic cells.
The sentence “Mitochondria and Chloroplasts are bigger than prokaryotes” does not testify the symbiont theory. The endosymbiont theory states that mitochondria and chloroplasts of the eukaryotic cells emerged when giant host cells started harboring prokaryotic cells by endosymbiotic process. These three additional attributes involve the presence of their own ribosomes, independent reproduction, and DNA resembling bacterial DNA. These comm code for the endosymbiotic theory, meaning that those organelles were not always contracted in living cells, rather they were prokaryotes on their own. While their size to prokaryotic cells ratio bears no relation to the endosymbiosis theory, it is fair to state that the seemingly random sizing of organelles could in the end not reflect their evolutionary origin.
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