Dr Nick Lane talks about the origins of complex life and tells us what his studies have concluded about evolution. VIDEO
Dr Nick Lane talks about the origins of complex life and tells us what his studies have concluded about evolution. VIDEO
This is an interesting notion. Organelles that we find inside of eukaryotic cells are somewhat like a cell within a cell. This is because they both have a lipid bi-layer separating them from the outside environment. A mitochondria is a good example of this; and in biology, mitochondria have their own set of DNA, separate from that found in the nucleus.
I believe, in short, that is what the professor is implying.
in addition to my first post
I wanted to add that it is widely accepted by biologists that chloroplasts and mitochondria most likely evolved from bacteria that were engulfed by eukaryotic cells.