7. How is the finding of
ribosomes inside mitochondria
and chloroplasts explained?

Gap-fill exercise

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It is a hypothesis that
mitochondria chloroplasts were
prokaryotes associated to primitive
cells under mutualism
( protection and offering
). This explains why those
organelles there DNA and protein
machinery, including
ribosomes. hypothesis is known
the endosymbiotic hypothesis the
origin of and chloroplasts.