Question

Which of the following properties of chloroplasts and mitochondria does not provide support for the endosymbiont theory that presentday eukaryotic cells are descendants of a successful symbiotic relationship between a host cell and an engulfed prokaryote?

They have a double membrane that resembles that of some ancient prokaryotic cells

They have their own DNA and also replicate in a manner similar to some bacteria cells

Their inner membranes contain the same enzymes as prokaryotic plasma membranes

They are able to produce ATP molecules to help power metabolic processes of the cell