The endosymbiotic theory is supported by the finding of non-nuclear DNA in which of the following organelles?
A)mitochondria and lysosomes
B)mitochondria and Golgi apparatus
C)mitochondria and chloroplasts
D)chloroplasts and Golgi apparatus
E)chloroplasts and lysosomes

Question

Quizplus · Accepted Answer

The endosymbiotic theory proposes that mitochondria and chloroplasts were once free-living bacteria that were engulfed by a host cell and eventually became organelles within that cell. Non-nuclear DNA has been found in both mitochondria and chloroplasts, thus supporting this theory. Lysosomes and Golgi apparatus do not contain non-nuclear DNA and therefore do not support the endosymbiotic theory.

The Endosymbiotic Theory Is Supported by the Finding of Non-Nuclear