Which statement most closely expresses our present understanding?
A) The chloroplast is an ancestor of the cyanobacteria.
B) The cyanobacteria are descendents of the chloroplast.
C) The chloroplast arose from the incorporation of a cyanobacterial-like organism.
D) The chloroplast and the cyanobacteria are not closely (or specifically) related.

Question

Quizplus · Accepted Answer

The current understanding is that the chloroplast arose from the incorporation of a cyanobacterial-like organism, which is supported by the endosymbiotic theory.

Which Statement Most Closely Expresses Our Present Understanding