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.
Complete a Doctor of Optometry Program. These programs take four years to complete, and must be completed at an accredited optometry school. 1  The cost of the program will vary depending on what school you choose, but annual tuition ranges from roughly $9,000 to $22,000 for state residents.hey differ from ophthalmologists, who can also perform eye surgeries, and from opticians, who design, fit, and dispense lenses. If improving peoples' vision and overall quality of life is something that you are passionate about, then read this article to learn how to become an optometrist. Ad.