The fundamental difference between the two methods is that molecular cloning involves replication of the DNA in a living microorganism, while PCR replicates DNA in an in vitro solution, free of living cells.
Costs. Becoming a doctor is not cheap. Depending on your location and specialty, medical school alone can cost between $50,000 and $150,000, and thatâs only tuition.
Years to Become a Physician It typically takes four years of under graduate school to obtain your bachelor's then an additional 4 years of medical school then several years of internships before you can use the title of M.D. On average it can take up to 12 years to reach this goal.