What do you think is the single best criterion for telling an endosymbiont of a eukaryotic cell from an organelle?
Post Script
I must come clean and confess that I formulated this question after having read a most stimulating review by John McCutcheon and Nancy Moran that touches on this subject. Some of the responses you provided are related to considerations in this article. Read and enjoy!
-Elio
With respect to the postscript
http://download.bioon.com.cn/view/upload/201112/19191116_6450.pdf
--bks
Posted by: bks | May 15, 2013 at 06:11 PM