In the three-domain model, the bacterial ancestor of chloroplasts derives from ancient
A) fungi.
B) cyanobacteria.
C) proteobacteria.
D) archaea.
E) protists.

Question

Quizplus · Accepted Answer

Chloroplasts are believed to have originated from ancient cyanobacteria through a process called endosymbiosis, where a cyanobacterium was engulfed by a larger cell and eventually became an integral part of that cell, leading to the development of plants and algae.

In the Three-Domain Model, the Bacterial Ancestor of Chloroplasts Derives