Mitochondrial $DNA$ is.....

Which statement is correct regarding mitochondria?

$Assertion (S):$ $F_1$ particles contain the components necessary for oxidative phosphorylation.
$Reason (R):$ The mitochondrial matrix contains enzymes required for glycolysis.

Assertion: Mitochondria helps in photosynthesis.
Reason: Mitochondria have enzymes for dark reaction.

How many organelles of a eukaryotic cell are considered to have had an independent existence during the early events of evolution?

Which of the following observations most strongly supports the view that mitochondria contain electron transfer enzymes aggregated into compact associations?