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.
1 This equals an average cost of $30,400 (resident) or $78,400 (non-resident) for a four-year bachelor's degree, not including room and board, which averages an extra $8,545 per year. 2  A master's degree program in education typically costs $12,000-$74,000. The Praxis Tests cost $50 for registration and an additional $65-$150 for individual tests, several of which may be required by a state. 2  Most states require teachers to pass Praxis Tests prior to receiving a teaching license.