PCR in biology stands for polymerase chain reaction. It refers to a process of multiplying or amplifying a small amount of DNA to carry out more conclusive research or data analysis.
Polymerase chain reaction has several advantages with one being that it is inexpensive. This DNA amplification process can be done in a short time, making it ideal for researchers who are working to an urgent timeline. PCR allows for early diagnosis of malignant diseases such as leukemia and lymphomas. Some disadvantages associated with polymerase chain reaction include being prone to errors and possibility of mutation to the template DNA.