Why are plastids and mitochondria semiautonomous organelles?

Semi-autonomous organelles – organelles containing their own DNA, all types of RNA, ribosomes capable of synthesizing proteins, as well as converting E into EATP (ATP synthesis).
Plastids and mitochondria have their own circular DNA and prokaryotic ribosomes, they are capable of synthesizing proteins and transforming specific forms of energy into a form that is easily assimilated by the cell.



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