Answer
Mitochondria and chloroplasts both have double membranes, ribosomes and chromosomes, much like cells do. Mitochondria and chloroplasts have the ability to manufacture proteins using their own ribosomes and DNA. This suggests that they were once able to serve on their own, according to the endosymbiosis theory.
Work Step by Step
Mitochondria and chloroplasts both have double membranes, ribosomes and chromosomes, much like cells do. Mitochondria and chloroplasts have the ability to manufacture proteins using their own ribosomes and DNA. This suggests that they were once able to serve on their own, according to the endosymbiosis theory.
