Question

true or false: mitochondria actually contain their own dna and ribosomes.
true
false
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Explanation:

Mitochondria are semi - autonomous organelles. They have their own DNA (mtDNA) which is circular, similar to prokaryotic DNA. Also, they have their own ribosomes (70S type, similar to prokaryotic ribosomes) to synthesize some of their own proteins. This is in line with the endosymbiotic theory which suggests that mitochondria were once free - living prokaryotes that were engulfed by a eukaryotic cell.

Answer:

true