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.
It takes a minimum of 8 years after high school to become a doctor, and then a minimum of another 3 years before they can practice on their own, and possibly more depending on â¦ specialty. So in total a minimum of 11 years after high school. 15 people found this useful.heck with your  state's medical board or local college to find out exactly how long  it takes to become certified in your state, each state varies; but  not by much. I have never heard of someone obtaining a medical  degree in less than 10 years.  doctor  3-7 years and then another 3 to speciallise. .