Mitochondria and chloroplasts also contain DNA which is short, circular and not associated with protein
Mitochondria and chloroplasts carry their own DNA. That DNA is short, circular, and not wrapped around any proteins.
Real World
Mitochondria in your muscle cells carry 37 genes on a small, circular DNA molecule — identical in structure to the ancient free-living bacteria that Lynn Margulis argued gave rise to mitochondria through endosymbiosis.
Exam Focus
When asked to 'describe' organelle DNA, state all three features — short, circular, and not associated with proteins — to secure full marks.
Evaluation Scaffold
A four-step framework for high-quality evaluation. Use this for 'assess', 'evaluate', and 'to what extent' questions.
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