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.
Click Here to return to the search form. If I'm remembering correctly, chloroplasts have their own DNA, too. Scientists believe that mitochondria and chloroplasts were primitive cells without nuclei (prokaryotes) that got inside of primitive cells with nuclei (eukaryotes) and then stayed there.o they came in with their own DNA, and now they still have some of their own DNA that carries the code for some of their own proteins. They also need some proteins coded by genes in the nuclear DNA. A woman scientist first suggested all this, Lynn Margulis.