What features are unique to prokaryotes which thereby require them to perform a reproductive process separate from mitosis?

Some primary differences between prokaryotic and eukaryotic cells is that prokaryotes do not have a an organized nucleus, nor do they have membrane-bound organelles. They also only possess a single chromosome. This makes them less complex than eurkaryotes, and thus prokaryotes perform binary fission instead of mitosis.

No that answer is wrong. you have written the function of mitochondria in chloroplast and function of chloroplast in mitochondria.