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.
A cell can have different types of mitochondria (heteroplasmy) or same type of mitochondria (homoplasmy). Chloroplast DNA: Like mitochondria, chloroplast also contain circular double stranded DNA molecules. They too do not associate with histones.hloroplast DNA is a circular molecule of DNA located in chloroplasts (an organelle mostly in plant cells and other eukaryotic organisms that perform photosynthesis).