how-does-the-presence-of-porins-in-mitochondria-and-chloroplasts-support-the-end

Question

How does the presence of porins in mitochondria and chloroplasts support the endosymbiotic theory?

Accepted Answer

It indicates that mitochondria and chloroplasts originated from bacteria.

Answer

It implies that porins are unique to eukaryotic cells.

Answer

It suggests that mitochondria and chloroplasts evolved independently from bacteria.

Answer

It shows that porins are irrelevant to the evolution of mitochondria and chloroplasts.