Indicate whether each of the following descriptions better applies to chloroplasts (C) or mitochondria (M). Your answer would be a five-letter string composed of letters C and M only, e.g. MMMMC.
( ) Extensive editing occurs on their RNAs.
( ) They utilize dynamin-like GTPases to divide from the outside.
( ) The organization of gene clusters in their genome is strikingly similar to cyanobacteria.
( ) They typically have larger genomes.
( ) They have a more ancient endosymbiotic relationship with their host.

Question

Indicate whether each of the following descriptions better applies to chloroplasts (C) or mitochondria (M). Your answer would be a five-letter string composed of letters C and M only, e.g. MMMMC.
( )	Extensive editing occurs on their RNAs.
( )	They utilize dynamin-like GTPases to divide from the outside.
( )	The organization of gene clusters in their genome is strikingly similar to cyanobacteria.
( )	They typically have larger genomes.
( )	They have a more ancient endosymbiotic relationship with their host.

Quizplus · Accepted Answer

The chloroplast was derived later than the mitochondrion in the evolutionary history of the eukaryotic cell. Chloroplasts are generally larger than mitochondria and contain larger genomes. They share many striking similarities with bacteria, including similar genome organization and similar division mechanisms. Despite this, RNA editing and RNA processing are prevalent in chloroplasts and are catalyzed by proteins not found in bacteria.

Indicate Whether Each of the Following Descriptions Better Applies to Chloroplasts