The area that is today the center of Allentown was laid out as Northampton Town in 1762 by William Allen, a wealthy shipping merchant, former mayor of the city of Philadelphia and then-Chief Justice of the Province of Pennsylvania.
Mitochondria and Chloroplasts are known to have their own DNA and make their own proteins. According to endosymbiosis theory, these organelles were known to have moved into eukaryotic cell in the form of vesicles when they came into contact with prokaryotes. :) Views.
1 Membranes  Mitochondria have their own cell membranes, just like a prokaryotic cell does. 2  DNA  Each mitochondrion has its own circular DNA genome, like a bacteria's genome, but much smaller. 3  This DNA is passed from a mitochondrion to its offspring and is separate from the host cell's genome in the nucleus.