PCR is short for polymerase chain reaction and is a method we can use to clone sequences of DNA. We often want to clone these sequences a whole bunch (on the order of a billion copies of a single sequence!), so technology is obviously involved. This is how it works: DNA is collected from somewhere.
E. Nazareth was an isolated city, did not take in many visitors, had the worst cultural habits in Galilee, had a bad name among neighboring towns perhaps due to lack of religious adherence and low morals. -example - there may be a location within your community that has a bad reputation, not an ideal place to live.
Poorer Romans, however, could only dream of such a life. Sweating it out in the city, they lived in shabby, squalid houses that could collapse or burn at any moment. If times were hard, they might abandon newborn babies to the streets, hoping that someone else would take them in as a servant or slave.