【多选题】The chloroplasts of modern organisms resemble mitochondria in several properties, and probably originated by the same mechanism that gave rise to mitochondria: endosymbiosis.
A.
Like mitochondria, chloroplasts contain their own DNA and protein-synthesizing machinery.
B.
Some of the polypeptides of chloroplast proteins are encoded by chloroplast genes and synthesized in the chloroplast; others are encoded by nuclear genes, synthesized outside the chloroplast, and imported.
C.
When plant cells grow and divide, chloroplasts give rise to new chloroplasts by division, during which their DNA is replicated and divided between daughter chloroplasts.
D.
The machinery and mechanisms for light capture, electron flow, and ATP synthesis in modern cyanobacteria are similar in many respects to those in plant chloroplasts.
【多选题】What is the evidence of the bacterial ancestry of chloroplasts and mitochondria ?
A.
The organelles that produce ATP in eukaryotic cells—the chloroplasts and mitochondria— evolved from bacteria that were engulfed by ancestral cells more than a billion years ago.
B.
Both chloroplasts and mitochondria reproduce in a manner similar to that of most prokaryotes.
C.
The organelles also harbor bacterial-like biosynthetic machinery for making RNA and proteins, and they possess DNA-based genomes.
D.
Many chloroplast genes are strikingly similar to those of cyanobacteria—the photosynthetic bacteria from which these organelles were derived.